7个回答
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1.45+15×6= 135
2.250÷5×8=400
3.6×5÷2×4=60
4.30×3+8=98
5.400÷4+20×5= 200
6.10+12÷3+20=34
7.(80÷20+80)÷4=21
8.70+(100-10×5)=120
9.360÷40= 9
10.40×20= 800
11.80-25= 55
12.70+45=115
13.90×2= 180
14.16×6= 96
15.300×6= 1800
16.540÷9=60
17.30×20= 600
18.400÷4= 100
19.350-80= 270
20.160+70=230
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16= 400
30.120×25= 3000
31.36×11= 396
32.1025÷25=41
33.336+70= 406
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50= 600
38.25×8= 200
39.23×11= 253
40.125÷25=5
41.4200-2200=2000
42.220+80= 300
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4
48.2800÷40=70
49.98÷14 = 7
50.96÷24 = 4
51.56÷14 =4
52.65÷13 = 5
53.75÷15 = 5
54.120÷24 =5
55.200÷25 = 8
56.800÷16 = 50
57.840÷21 =40
58.560÷14 = 40
59.390÷13 = 30
60.600÷15 =40
61.72÷24 = 3
62.85÷17 = 5
63.90÷15 =6
64.96÷16 = 6
65.78÷26 = 4
66.51÷17 =3
67.80÷40 = 2
68.100÷20 = 5
69.100÷4 =25
70.240÷40 = 6
71.920÷4 = 230
72.300÷60=5
73.64÷2 = 32
74.64÷4 = 16
75.50÷5 =10
76.60÷8 = 7.5
77.96÷4 = 24
78.90÷6 =15
79.400+80 = 480
80.400-80 = 320
81.40×80 =3200
82.400÷80 = 5
83.48÷16 = 3
84.96÷24 =4
85.160×5= 800
86.4×250= 1000
87.0×518= 0
88.10×76= 760
89.36×10=360
90.15×6= 90
91.24×3= 72
92.5×18= 90
93.26×4= 74
94.7×15=105
95.32×30= 960
96.40×15= 600
97.60×12= 720
98.23×30= 690
99.30×50=1500
100.5×700=3500
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
1.9-1.9*(1.9-1.9)
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001-9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403÷13×27
46.1.5×4.2-0.75÷0.25
47.3.27×4 +3.27×5.7
48.(1.2+ 1.8)×4.51025-768÷32
49.0.25×80-0.45÷0.9
50.1025-768÷32
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)
1/2+1/3
2/1-5/4
9\3*3\9
3/4+5/4=? 4/5+6/5=? 5/6+6/7=?
2.250÷5×8=400
3.6×5÷2×4=60
4.30×3+8=98
5.400÷4+20×5= 200
6.10+12÷3+20=34
7.(80÷20+80)÷4=21
8.70+(100-10×5)=120
9.360÷40= 9
10.40×20= 800
11.80-25= 55
12.70+45=115
13.90×2= 180
14.16×6= 96
15.300×6= 1800
16.540÷9=60
17.30×20= 600
18.400÷4= 100
19.350-80= 270
20.160+70=230
21.18-64÷8= 10
22.42÷6+20=27
23.40-5×7= 5
24.80+60÷3=100
25.41+18÷2= 50
26.75-11×5= 20
27.42+7-29= 20
28.5600÷80=70
29.25×16= 400
30.120×25= 3000
31.36×11= 396
32.1025÷25=41
33.336+70= 406
34.25×9×4= 900
35.200-33×3= 101
36.3020-1010=2010
37.12×50= 600
38.25×8= 200
39.23×11= 253
40.125÷25=5
41.4200-2200=2000
42.220+80= 300
43.20×8×5= 800
44.600-3×200=0
45.20+20÷2= 30
46.35-25÷5= 30
47.36+8-40= 4
48.2800÷40=70
49.98÷14 = 7
50.96÷24 = 4
51.56÷14 =4
52.65÷13 = 5
53.75÷15 = 5
54.120÷24 =5
55.200÷25 = 8
56.800÷16 = 50
57.840÷21 =40
58.560÷14 = 40
59.390÷13 = 30
60.600÷15 =40
61.72÷24 = 3
62.85÷17 = 5
63.90÷15 =6
64.96÷16 = 6
65.78÷26 = 4
66.51÷17 =3
67.80÷40 = 2
68.100÷20 = 5
69.100÷4 =25
70.240÷40 = 6
71.920÷4 = 230
72.300÷60=5
73.64÷2 = 32
74.64÷4 = 16
75.50÷5 =10
76.60÷8 = 7.5
77.96÷4 = 24
78.90÷6 =15
79.400+80 = 480
80.400-80 = 320
81.40×80 =3200
82.400÷80 = 5
83.48÷16 = 3
84.96÷24 =4
85.160×5= 800
86.4×250= 1000
87.0×518= 0
88.10×76= 760
89.36×10=360
90.15×6= 90
91.24×3= 72
92.5×18= 90
93.26×4= 74
94.7×15=105
95.32×30= 960
96.40×15= 600
97.60×12= 720
98.23×30= 690
99.30×50=1500
100.5×700=3500
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
1.9-1.9*(1.9-1.9)
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001-9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403÷13×27
46.1.5×4.2-0.75÷0.25
47.3.27×4 +3.27×5.7
48.(1.2+ 1.8)×4.51025-768÷32
49.0.25×80-0.45÷0.9
50.1025-768÷32
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)
1/2+1/3
2/1-5/4
9\3*3\9
3/4+5/4=? 4/5+6/5=? 5/6+6/7=?
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. 3/7 × 49/9 - 4/3 =1
2. 8/9 × 15/36 + 1/27 =7/9
3. 12× 5/6 – 2/9 ×3 =9又1/3
4. 8× 5/4 + 1/4 =10又1/4
5. 6÷ 3/8 – 3/8 ÷6 =15又15/16
6. 4/7 × 5/9 + 3/7 × 5/9 =1又5/9
7. 5/2 -( 3/2 + 4/5 )=1/5
8. 7/8 + ( 1/8 + 1/9 ) =1又1/9
9. 9 × 5/6 + 5/6 =12
10. 3/4 × 8/9 - 1/3 =1/3
11. 7 × 5/49 + 3/14 =13/14
12. 6 ×( 1/2 + 2/3 )=7
13. 8 × 4/5 + 8 × 11/5 =11
14. 31 × 5/6 – 5/6 =25
15. 9/7 - ( 2/7 – 10/21 )=11/21
16. 5/9 × 18 – 14 × 2/7 =6
17. 4/5 × 25/16 + 2/3 × 3/4 =57/50=1又7/50
18. 14 × 8/7 – 5/6 × 12/15 =15又1/3
19. 17/32 – 3/4 × 9/24 =1/4
20. 3 × 2/9 + 1/3 =1
21. 5/7 × 3/25 + 3/7 =18/35
22. 3/14 ×× 2/3 + 1/6 =13/42
23. 1/5 × 2/3 + 5/6 =29/30
24. 9/22 + 1/11 ÷ 1/2 =9
25. 5/3 × 11/5 + 4/3 =5
26. 45 × 2/3 + 1/3 × 15 =20
27. 7/19 + 12/19 × 5/6 =5/6
28. 1/4 + 3/4 ÷ 2/3 =1又1/2
29. 8/7 × 21/16 + 1/2 =2
30. 101 × 1/5 – 1/5 × 21 =42
2. 8/9 × 15/36 + 1/27 =7/9
3. 12× 5/6 – 2/9 ×3 =9又1/3
4. 8× 5/4 + 1/4 =10又1/4
5. 6÷ 3/8 – 3/8 ÷6 =15又15/16
6. 4/7 × 5/9 + 3/7 × 5/9 =1又5/9
7. 5/2 -( 3/2 + 4/5 )=1/5
8. 7/8 + ( 1/8 + 1/9 ) =1又1/9
9. 9 × 5/6 + 5/6 =12
10. 3/4 × 8/9 - 1/3 =1/3
11. 7 × 5/49 + 3/14 =13/14
12. 6 ×( 1/2 + 2/3 )=7
13. 8 × 4/5 + 8 × 11/5 =11
14. 31 × 5/6 – 5/6 =25
15. 9/7 - ( 2/7 – 10/21 )=11/21
16. 5/9 × 18 – 14 × 2/7 =6
17. 4/5 × 25/16 + 2/3 × 3/4 =57/50=1又7/50
18. 14 × 8/7 – 5/6 × 12/15 =15又1/3
19. 17/32 – 3/4 × 9/24 =1/4
20. 3 × 2/9 + 1/3 =1
21. 5/7 × 3/25 + 3/7 =18/35
22. 3/14 ×× 2/3 + 1/6 =13/42
23. 1/5 × 2/3 + 5/6 =29/30
24. 9/22 + 1/11 ÷ 1/2 =9
25. 5/3 × 11/5 + 4/3 =5
26. 45 × 2/3 + 1/3 × 15 =20
27. 7/19 + 12/19 × 5/6 =5/6
28. 1/4 + 3/4 ÷ 2/3 =1又1/2
29. 8/7 × 21/16 + 1/2 =2
30. 101 × 1/5 – 1/5 × 21 =42
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1、李佳有15元钱,王博有23元钱,他俩平均每人有( )元钱;王博拿出( )元钱给李佳,两人的钱数就一样多。
2、长方体的棱根据相对的位置关系,可以分成( )组,每组有( )条。
3、一个棱长是4分米的正方体,它的棱长总和是( )分米。
4、如果一个正方体的棱长之和是24a,那么它的一条棱长就是( ),表面积是( ),体积是( )。
5、用4个棱长为1厘米的正方体拼成一个长方体后,这个长方体的表面积最大是( )平方厘米,最小是( )平方厘米。
6、长方体的底面积是30平方分米,高是4分米,体积是( )立方分米。
7、棱长是2厘米的正方体,它的表面积是( )平方厘米,体积是( )立方厘米。
8、3立方米=( )立方分米
9、0.45立方分米=( )立方厘米
10、 6200立方厘米=( )立方分米
11、 56平方厘米=( )平方分米
12、15升=( )毫升
13、4300毫升=( )升
14、3.5立方分米=( )升=( )毫升
15、500毫升=( )立方厘米=( )立方分米
16、三个连续质数的最小公倍数是105,这三个数是( )、( )、( )。
17、用0、2、3、7这四个数组成一个最大的,能同时被2、5、3整除的数是( )。
18、直接写得数
0.9×6= 0.12×6= 6.8÷4= 0.72÷12=
0.24×2= 1.2÷3= 14×0.5= 9.6÷6=
1.6×5= 0.48÷6= 12.5÷5= 0.12×5=
4.6÷23= 1.6÷0.8= 7.2÷0.6= 3.9÷3.9=
1.8×0.5= 6.3÷9= 3.7+4.8= 0÷6.81=
2.5÷10= 0.15×8= 4.2÷14= 16-5.7=
8÷0.5= 0.32÷16= 0.5×1.1= 0.5+0.14=
1.25×4= 6.3÷2.1= 0.92÷4= 6÷1.2=
0.4÷8= 7.6-3.8= 6.2+1.7= 0.56÷14=
0.25+3.1+1.75= 10-1.8-2.2=
4.8×0.2×0.5= 0.3÷0.5÷2=
3.5×2= 4.8÷1.2= 0.24×4=
8.7-5.6= 5.6÷8= 0.7+0.43=
13.5×0.5 0.056×0.15 1.69÷26 117÷36
19.4×6.1×2.3 5.67×0.2-0.62
18.1×0.92+3.93 0.043×0.24+0.875
0.4×0.7×0.25 0.75×102 100-56.23
0.78+5.436+1 4.07×0.86+9.125
0.7×X=17.5 X÷0.38=1.65 9.2-X=0.43
X÷0.15=12.4 X×0.7=10.5 16.9÷X=0.13
42÷28 7.2÷16+0.8 19.8÷3.3
2.8×3.6+1.4×2.8
(3.2+0.128) ÷0.8
x-24.3=51.2(写出检验过程)
3.2x=2.56(写出检验过程)
10.8-x=4.65
4.5÷x=1.5
1.05x=420(写出检验
16.4÷25÷0.04
2.6-7.21÷3.5
67.5÷2.25×4.02
1058.4÷2.4÷35
0.36÷0.12÷3
0.26×70.75÷6.5
7.8×(23.4÷7.8)
32648÷10.6-□=
0.63÷2.8=
10.81÷4.6×0.38
3.84×0.45÷1.2
0.63÷2.8=
8.4÷0.6-1.75
22.25÷(32÷12.8)
0.15÷0.3÷0.5
2、长方体的棱根据相对的位置关系,可以分成( )组,每组有( )条。
3、一个棱长是4分米的正方体,它的棱长总和是( )分米。
4、如果一个正方体的棱长之和是24a,那么它的一条棱长就是( ),表面积是( ),体积是( )。
5、用4个棱长为1厘米的正方体拼成一个长方体后,这个长方体的表面积最大是( )平方厘米,最小是( )平方厘米。
6、长方体的底面积是30平方分米,高是4分米,体积是( )立方分米。
7、棱长是2厘米的正方体,它的表面积是( )平方厘米,体积是( )立方厘米。
8、3立方米=( )立方分米
9、0.45立方分米=( )立方厘米
10、 6200立方厘米=( )立方分米
11、 56平方厘米=( )平方分米
12、15升=( )毫升
13、4300毫升=( )升
14、3.5立方分米=( )升=( )毫升
15、500毫升=( )立方厘米=( )立方分米
16、三个连续质数的最小公倍数是105,这三个数是( )、( )、( )。
17、用0、2、3、7这四个数组成一个最大的,能同时被2、5、3整除的数是( )。
18、直接写得数
0.9×6= 0.12×6= 6.8÷4= 0.72÷12=
0.24×2= 1.2÷3= 14×0.5= 9.6÷6=
1.6×5= 0.48÷6= 12.5÷5= 0.12×5=
4.6÷23= 1.6÷0.8= 7.2÷0.6= 3.9÷3.9=
1.8×0.5= 6.3÷9= 3.7+4.8= 0÷6.81=
2.5÷10= 0.15×8= 4.2÷14= 16-5.7=
8÷0.5= 0.32÷16= 0.5×1.1= 0.5+0.14=
1.25×4= 6.3÷2.1= 0.92÷4= 6÷1.2=
0.4÷8= 7.6-3.8= 6.2+1.7= 0.56÷14=
0.25+3.1+1.75= 10-1.8-2.2=
4.8×0.2×0.5= 0.3÷0.5÷2=
3.5×2= 4.8÷1.2= 0.24×4=
8.7-5.6= 5.6÷8= 0.7+0.43=
13.5×0.5 0.056×0.15 1.69÷26 117÷36
19.4×6.1×2.3 5.67×0.2-0.62
18.1×0.92+3.93 0.043×0.24+0.875
0.4×0.7×0.25 0.75×102 100-56.23
0.78+5.436+1 4.07×0.86+9.125
0.7×X=17.5 X÷0.38=1.65 9.2-X=0.43
X÷0.15=12.4 X×0.7=10.5 16.9÷X=0.13
42÷28 7.2÷16+0.8 19.8÷3.3
2.8×3.6+1.4×2.8
(3.2+0.128) ÷0.8
x-24.3=51.2(写出检验过程)
3.2x=2.56(写出检验过程)
10.8-x=4.65
4.5÷x=1.5
1.05x=420(写出检验
16.4÷25÷0.04
2.6-7.21÷3.5
67.5÷2.25×4.02
1058.4÷2.4÷35
0.36÷0.12÷3
0.26×70.75÷6.5
7.8×(23.4÷7.8)
32648÷10.6-□=
0.63÷2.8=
10.81÷4.6×0.38
3.84×0.45÷1.2
0.63÷2.8=
8.4÷0.6-1.75
22.25÷(32÷12.8)
0.15÷0.3÷0.5
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3/7x49/9-4/3
=7/3-4/3
1
8/9x15/36+1/27
=10/27+1/27
=11/27
12x5/6-2/9x3
=10-2/3
=28/
8x5/4+1/4
10+1/4
=41/4
6x8/3-3/8x1/6
=16-1/16
=257/16
4/7x5/9+3/7x5/9
=(4/7+3/7)x5/9
=1x5/9
=5/9
=7/3-4/3
1
8/9x15/36+1/27
=10/27+1/27
=11/27
12x5/6-2/9x3
=10-2/3
=28/
8x5/4+1/4
10+1/4
=41/4
6x8/3-3/8x1/6
=16-1/16
=257/16
4/7x5/9+3/7x5/9
=(4/7+3/7)x5/9
=1x5/9
=5/9
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1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
1.口算下面各题
(1)58+42= (2)87-45= (3)125×8=
(4)50×12= (5)804÷4= (6)134+66=
(7)1000-98= (8)720÷5= (9)0÷47=
2.先填写下面各题的运算顺序,再计算出得数。
(1)168+36-36+32=
(2)153-5×14+83=
(3)50×5÷50×5=
3.判断:对的打“√”,错的打“×”
(1)13×15与15×13表示的意义相同。( )
(2)3000÷425÷8的计算结果一定小于3000÷(425×8)的计算结果。( )
(3)两个因数的积是800,如果一个因数不变,另一个因数缩小20倍,那么积是40。( )
(4)算式:“750÷25+35×2”所表示的意义是750除以25的商;加上35的2倍,和是多少?( )
(5)24×25=6×4×25=6+100=106( )
4.用简便方法计算:
(1)3786-499
(2)32×25×125
(3)1653-338-662
(4)7987+350+2013+450
(5)38×38+62×38
(6)452+99×452
(7)201×79
(8)50×125×4×8
(1)340×(120-40÷8)
(2)45×(720-1957÷19)
(3)86+[4500+(2088÷36)÷2]
(4)396×[74-(4875÷15-13×21)]
(5)[1054-(174-168)]÷8
(6)6048÷[(107-99)×9]
51+(2304-2042)×23
4215+(4361-716)÷81
(247+18)×27÷25
36-720÷(360÷18)
1080÷(63-54)×80
(528+912)×5-6178
8528÷41×38-904
264+318-8280÷69
(174+209)×26- 9000
814-(278+322)÷15
1406+735×9÷45
3168-7828÷38+504
796-5040÷(630÷7)
285+(3000-372)÷36
546×(210-195)÷30
0.75+0.2)/0.25*25% 12/0.75+7.2/2.4
605*8+3.5-44 10.9-(6.6+0.125/12.5%)
980-9.8)*0.6-2.12 (0.125*8-0.5)*4
1+0.45/0.9-0.75 168.1/(4.3*2-0.4)
1.21*42-(4.46+0.14) 1375+450/18*25
18/1.5-0.5*0.3
1.9-1.9*(1.9-1.9)
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001-9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403÷13×27
46.1.5×4.2-0.75÷0.25
47.3.27×4 +3.27×5.7
48.(1.2+ 1.8)×4.51025-768÷32
49.0.25×80-0.45÷0.9
50.1025-768÷32
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)
1/2+1/3
2/1-5/4
9\3*3\9
3/4+5/4=? 4/5+6/5=? 5/6+6/7=?
三分之一加六分之五
五分之七加九分之六 八分之三乘六分之五 七分之四除以十一分之六
怎么样。。给分吧
1.125*3+125*5+25*3+25
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
1.口算下面各题
(1)58+42= (2)87-45= (3)125×8=
(4)50×12= (5)804÷4= (6)134+66=
(7)1000-98= (8)720÷5= (9)0÷47=
2.先填写下面各题的运算顺序,再计算出得数。
(1)168+36-36+32=
(2)153-5×14+83=
(3)50×5÷50×5=
3.判断:对的打“√”,错的打“×”
(1)13×15与15×13表示的意义相同。( )
(2)3000÷425÷8的计算结果一定小于3000÷(425×8)的计算结果。( )
(3)两个因数的积是800,如果一个因数不变,另一个因数缩小20倍,那么积是40。( )
(4)算式:“750÷25+35×2”所表示的意义是750除以25的商;加上35的2倍,和是多少?( )
(5)24×25=6×4×25=6+100=106( )
4.用简便方法计算:
(1)3786-499
(2)32×25×125
(3)1653-338-662
(4)7987+350+2013+450
(5)38×38+62×38
(6)452+99×452
(7)201×79
(8)50×125×4×8
(1)340×(120-40÷8)
(2)45×(720-1957÷19)
(3)86+[4500+(2088÷36)÷2]
(4)396×[74-(4875÷15-13×21)]
(5)[1054-(174-168)]÷8
(6)6048÷[(107-99)×9]
51+(2304-2042)×23
4215+(4361-716)÷81
(247+18)×27÷25
36-720÷(360÷18)
1080÷(63-54)×80
(528+912)×5-6178
8528÷41×38-904
264+318-8280÷69
(174+209)×26- 9000
814-(278+322)÷15
1406+735×9÷45
3168-7828÷38+504
796-5040÷(630÷7)
285+(3000-372)÷36
546×(210-195)÷30
0.75+0.2)/0.25*25% 12/0.75+7.2/2.4
605*8+3.5-44 10.9-(6.6+0.125/12.5%)
980-9.8)*0.6-2.12 (0.125*8-0.5)*4
1+0.45/0.9-0.75 168.1/(4.3*2-0.4)
1.21*42-(4.46+0.14) 1375+450/18*25
18/1.5-0.5*0.3
1.9-1.9*(1.9-1.9)
1.(1+1/2)(1+1/3)(1+1/4)......(1+1/100)
2.(1-1/2)(1-1/3)(1-1/4)......(1-1/100)
3.8+2-8+2
4.25*4/25*4
5.7.26-(5.26-1.5)
6.286+198
7.314-202
8.526+301
9.223-99
10.6.25+3.85-2.125+3.875
11.9-2456*21
12.0.5/11.5-4*2.75
13.1/2×3/5
14.3.375+5.75+2.25+6.625
15.1001-9036÷18
16.3.8×5.25+14.5
17.2.1*4.3+5.7*2.1
18.30×1/3
19.102*45-328
20.2/3×12
21.2.8*3.1+17.6/8
22.3/5×5/6
23.(50-12.5)/2.5
24.2/5×1/3
25.6110*47+639
26.1/2-1/6
27.3.5*2.7-52.2/18
28.1/7×1/5
29.3.375*0.97+0.97*6.625
30.25×4/5
31.6.54+2.4+3.46+0.6
32.5/6-1/2
33.95.6*1.8+95.6*8.2
34.1/2×1/5
35.600-420/12
36.344/3.6-5.4*0.25
37.16/2+30/2+90/6
38.3001-1998.
39.5000-105*34
40.0.15/0.25+0.75*1.2
41.(1/2+1/3+1/4)*0.24
42.(25+4)*4
43.300-4263/21
44.0.81/0.25+5.96
45.403÷13×27
46.1.5×4.2-0.75÷0.25
47.3.27×4 +3.27×5.7
48.(1.2+ 1.8)×4.51025-768÷32
49.0.25×80-0.45÷0.9
50.1025-768÷32
51.0.25*2.69*4
52.2348+275*16
53.2/9*15/8-1/12*9/5
54.2.4+2.4*(5.375-3.375)
55.645-45*12
56.0.15+1.2/0.24-0.45
57.3.75-(2.35+0.25/1.25)
58.76*1/4+23*25/100+0.25
59.10-2.87-7.13
60.0.96+9.6*9.9
61.7.5-5.7*1/3
62.12.37-3.25-6.75
63.16*6.8+2.2*16+16
64.401*19+284
65.58.7-16.65/3.7
66.0.4*4.7*2.5+(2.3+5.3)
67.9.31-1.125-7.875
68.640+128*45
69.8.2*1.6-0.336/4.2
70.400*(0.62+0.08)
1/2+1/3
2/1-5/4
9\3*3\9
3/4+5/4=? 4/5+6/5=? 5/6+6/7=?
三分之一加六分之五
五分之七加九分之六 八分之三乘六分之五 七分之四除以十一分之六
怎么样。。给分吧
1.125*3+125*5+25*3+25
追问
请注意看问题关键词,400道,6年级,口算,分数计算题。 最好是依次排列400道,谢谢
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