五年级下册60个计算题
五年级下册计算题:
一、列竖式计算
0.34×2.5=
1.5×1.7=
243.2÷64=
0.28×0.39=
4.2×2.4=
101.7÷9=
68.8÷4=
85.44÷16=
67.5÷15=
289.9÷18=
16.8÷28=
15.6÷24=
0.138÷15=
1.35÷27=
0.416÷32=
3.64÷52=
91.2÷3.8=
0.756÷0.18=
51.3÷0.27=
26÷0.13=
210÷1.4=
2.688÷0.56=
6.35÷0.8÷1.25=
10.625÷25=
126÷45=
10÷25=
2.7÷7.5=
15÷0.06=
25.6÷0.032=
36×5.5=
18×3.06=3.45×21=
0.87×1.5=
0.28×0.25=
150×0.12=
7.06×2.4-5.7=
0.4×0.076=
1.5×0.062=
6.5×0.04=
8.7×10.1=
二、用简便方法计算
2.5×6.8×0.4=
2.5×3.2×1.25=
21.36÷0.8×2.9=
102×0.45=
8.27+7.52+1.73-3.52=
0.79×99+0.79=
2.8×3.2+3.2×7.2=
0.15+
0.75×18=
72+8÷2.5-30.2=
10.5×1.03=
三、保留一位小数:
8.85÷13≈
0.72÷0.7≈
3.18÷2.8≈
2.17×6≈
0.24×15≈
0.76×34≈
1.05×16≈
50×0.13×0.2≈
1.25×0.7×0.8≈
0.3×2.5×0.4≈
0.78×100.5≈
1.5×102≈
1.2×2.5+0.8×2.5≈
14.36÷2.7≈8.33÷6.2≈1.7÷0.03≈
27×0.43≈
0.86×1.2≈
1.2×1.4≈
四、保留两位小数:
3.81÷7≈
246.4÷13≈
7.09÷0.52≈
0.17×0.8≈
2.7×0.35≈
32÷42≈1.25÷1.2≈2.41÷0.7≈
五、除不尽的用循环小数表示
162÷3.6=
13÷11=
4.6÷0.27=
六、用简便方法计算:
12.5×4.8=
1.01×2.6=
3.8×9.9=
0.125×2.5×3.2=
0.93×201=
871×47+871×53=
(7.04+2.76)×1.2=
4.25×0.99+0.01=
125×32=
7.06×2.4-5.7=
2.33×0.5×4=
0.65×105=
3.76×0.25+25.8=
4.8×0.25=
1.2×2.5+0.8×2.5=
1.3944÷0.84=
28.3×0.1×2.7=
58.36×0.5+18.2=
1.01×8.5=
0.79×98+0.79×2=
0.48×1.25=
0.25×5.8×0.4=
计算题如下:
1、27×17/26
解析:此题先用加法分配律,把27转换成(26+1),再利用乘法结合律,使得运算简便。
27×17/26
=(26+1)×17/26
=26×17/26+1×17/26
=17+17/26
=17又17/26
2、1.2×2.5+0.8×2.5
解析:运用提取公因数的方法,公式:ac+ab=a(b+c),提取公因数2.5,1.2和0.8相加正好凑整数,使得运算简便。
1.2×2.5+0.8×2.5
=(1.2+0.8)×2.5
=2×2.5
=5
3、2.96×40
解析:此题先利用乘法分配律,把2.96×40转换成29.6x4,再利用乘法结合律来简便计算。
2.96×40
=29.6x4
=(30-0.4)x4
=30×4+0.4×4
=120-1.6
=118.4
4、0.36 x 1.5 - 0.45
解析:此题运用乘法分配律,把0.45转换成1.5 x 0.3 ,即可提取公因数1.5,再根据乘法结合律进行简便计算。
0.36 x 1.5 - 0.45
= 0.36 x 1.5 - 1.5 x 0.3
= 1.5 × (0.36 - 0.3)
= 1.5 × 0.06
= 0.09
5、46×44/45
解析:此题先利用加法分配律把46转换成(45+1),再利用乘法结合律:(a×b)×c=a×(b×c)使得运算简便。
46×44/45
=(45+1)×44/45
=45×44/45+44/45
=44+44/45
=44又44/45
6、1.6×7.5×1.25
解析:此题利用乘法分配律把1.6,转化成2×0.8,再利用乘法结合律:(a×b)×c=a×(b×c)凑整,进行简便计算。
1.6×7.5×1.25
=2×0.8×7.5×1.25
=(2×7.5)×(0.8×1.25)
=15×1
=15
7、0.72×10.1
解析:此题先利用加法分配律,把10.1转换成10+0.1,再利用乘法结合律使得运算简便。
0.72×10.1
=0.72×(10+0.1)
=0.72×10+0.72×0.1
=7.2+0.072
=7.272
2016-08-03
84.7×7-54.7×7
3.26×0.52+3.26×0.48+7.05
87.4×27.6+73.4×87.4-87.4
【10-(0.2+6.37÷0.7)】÷0.01
5.7×101 4.2×(12.5-7.5÷0.75)
30.8÷[14-(9.85+1.07)]
[60-(9.5+28.9)]÷0.18
2.881÷0.43-0.24×3.5
20×[(2.44-1.8)÷0.4+0.15]
28-(3.4+1.25×2.4)
2.55×7.1+2.45×7.1
777×9+1111×3
0.8×〔15.5-(3.21+5.79)〕
(31.8+3.2×4)÷5
31.5×4÷(6+3)
0.64×25×7.8+2.2
2÷2.5+2.5÷2
194-64.8÷1.8×0.9
36.72÷4.25×9.9
5180-705×6
24÷2.4-2.5×0.8
(4121+2389)÷7
671×15-974
469×12+1492
405×(3213-3189)
3.416÷(0.016×35)
0.8×[(10-6.76)÷1.2]
19.4×6.1×2.3
5.67×0.2-0.62
18.1×0.92+3.93
0.0430.24+0.875
0.4×0.7×0.25
0.75×102 100-56.23
0.78+5.436+1
4.07×0.86+9.12.5
30.8÷[14-(9.85+1.07)]
[60-(9.5+28.9)]÷0.18
2.881÷0.43-0.24×3.5
20×[(2.44-1.8)÷0.4+0.15]
28-(3.4+1.25×2.4)
2.55×7.1+2.45×7.1
777×9+1111×3
0.8×〔15.5-(3.21+5.79)〕
(31.8+3.2×4)÷5
31.5×4÷(6+3)
0.64×25×7.8+2.2
2÷2.5+2.5÷2
194-64.8÷1.8×0.9
36.72÷4.25×9.9
5180-705×6
24÷2.4-2.5×0.8
(4121+2389)÷7
671×15-974
469×12+1492
405×(3213-3189)
3.416÷(0.016×35)
0.8×[(10-6.76)÷1.2]
19.4×6.1×2.3 5.67×0.2-0.62
18.1×0.92+3.93 0.0430.24+0.875
0.4×0.7×0.25 0.75×102 100-56.23
0.78+5.436+1 4.07×0.86+9.12
30.8÷[14-(9.85+1.07)]
[60-(9.5+28.9)]÷0.18
2.881÷0.43-0.24×3.5
20×[(2.44-1.8)÷0.4+0.15]
28-(3.4+1.25×2.4)
2.55×7.1+2.45×7.1
777×9+1111×3 0.8×〔15.5-(3.21+5.79)〕
(31.8+3.2×4)÷5 31.5×4÷(6+3)
0.64×25×7.8+2.2 2÷2.5+2.5÷2
194-64.8÷1.8×0.9 36.72÷4.25×9.9
5180-705×6 24÷2.4-2.5×0.8 (4121+2389)÷7
671×15-974 469×12+1492 405×(3213-3189)
3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2]
19.4×6.1×2.3 5.67×0.2-0.62
18.1×0.92+3.93
0.0430.24+0.875
0.4×0.7×0.25
0.75×102 100-56.23
0.78+5.436+1 4.07×0.86+9.12.5 30.8÷[14-(9.85+1.07)] [60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15] 28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1 777×9+1111×3 0.8×〔15.5-(3.21+5.79)〕 (31.8+3.2×4)÷5 31.5×4÷(6+3) 0.64×25×7.8+2.2 2÷2.5+2.5÷2 194-64.8÷1.8×0.9 36.72÷4.25×9.9 5180-705×6 24÷2.4-2.5×0.8 (4121+2389)÷7 671×15-974 469×12+1492 405×(3213-3189) 3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2] 19.4×6.1×2.3 5.67×0.2-0.62 18.1×0.92+3.93 0.0430.24+0.875 0.4×0.7×0.25 0.75×102 100-56.23 0.78+5.436+1 4.07×0.86+9.12.5
够了吧!横行霸刀0482
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