Question

五年级分数脱式计算题

Answer 1

34×3.535-3.5×34.34
=34×3.5×1.01-3.5×34×1.01
=0
8+89+899+8999+89999
=9+90+900+9000+90000-5
=99999-5
=99994
0.67×2.1+0.018×21+8.5×0.79
=0.67×2.1+0.18×2.1+8.5×0.79
=（0.67+0.18）×2.1+8.5×0.79
=0.85×2.1+0.85×7.9
=0.85×（2.1+7.9）
=0.85×10
=8.5
22222.2×9.99999
=22222.2×（10-0.00001）
=222222-0.222222
=222221.777778
1997×19961996-1996×19971997
=1997×1996×10001-1996×1997×10001
=0
0.02+0.04+0.06+0.08+……+19.94+19.96+19.98
=（0.02+19.98）×999÷2
=10×999
=9990
99999×77778+33333×66666
=99999×77778+99999×22222
=99999×（77778+22222）
=99999×100000
=9999900000

（4又5/6-3又3/4）/（3/14+2/7）
=13/12÷1/2
=13/6
=2又1/6
（4.8/1又4/5+3又1/2+7又1/3）*4/9
=（2又2/3+7又1/3+3.5）*4/9
=（10+3.5）*4/9
=13.5*4/9
=6
17.2/【（3又2/5-1.25）*2/3】
=17.2/【2.15*2/3】
=17.2÷43/3
=1.2
5*5又1/5
=5*5+5*1/5
=25+1
=26
（5又2/5-1.8）/[（1.15+13/20）*1又2/3]
=3.6/[1.8*5/3]
=3.6/3
=1.2
3又5/8*5又1/5+5又1/5*6又3/8
=5.2*(3又5/8+6又3/8）
=5.2*10
=52
[3/4-7/8/(5/6+4/5)]*28
=[3/4-7/8÷49/30]*28
=[3/4-15/28]*28
=3/4*28-15/28*28
=21-15
=6
(1.25*4/5-0.76)/(1又3/8+1又1/40）
=(1-0.76)/2.4
=0.24/2.4
=0.1
[(0.2+1/3)*4.5]/(8又1/20-6.45）
=8/15*4.5/1.6
=2.4/1.6
=1.5
x+3又2/3=5
x*9又3/4=7又1/11 x/2/5=10
6又2/3-x=4.25 6.4*1.7+6又2/5*8.3
（4又6/7+1.75）/1又11/14+3又5/6
2.16-7x=0.06
1/2x-0.5=5又1/2
8.16-1.26/0.3*1.5
=8.16-4.2*1.5
=8.16-6.3
=1.86
8.4*[(1.2+3又1/3）/3.4-1/2]
=8.4*[68/16/3.4-1/2]
=8.4*[5/4-1/2]
=8.4*3/4
=6.3
5.8：x=3又1/2:7
3.5x=7*5.8
x=7/3.5*5.8
x=2*5.8
x=11.6
3/10*55-4x=14.5
16.5-4x=14.5
4x=2
x=0.2
19.38-4又7/8-5又1/8
=1.938-(4又7/8+5又1/8）
=19.38-10
=9.38
13又7/13-（6又3/5+3又7/13）
=13又7/13-3又7/13-6又3/5
=10-6又3/5
=3.4
1又3/4+[2又3/14-（2又3/14-1.875）]/2又1/12
=1又3/4-15/8*12/25
=1又3/4-9/10
=0.85
（9.4-8又2/5）/[（1.1+1/15）*1又7/18]
=1/[7/6*25/18]
=1÷175/108
=108/175

Answer 2

60×(1/12+1/15+1/4)
=60×1/12+60×1/15+60×1/4
=5+4+15
=24

(5/12-3/8)×72
=5/12×72-3/8×72
=30-27
=3

7/25×4/9+7/25×5/9
=7/25×(4/9+5/9)
=7/25×1
=7/25

6/7-5/24÷7/12
=6/7-5/24×12/7
=12/14-5/14
=7/14
=1/2

[3/4×(7/16-1/4)]÷9/13
=3/4×（7/16-4/16）×13/9
=1/4×3/16×13/3
=13/64

2/3-7/8+1/3
=(2/3+1/3)-7/8
=1-7/8
=1/8

5/6-(3/7-1/6)
=(5/6+1/6)-3/7
=1-3/7
=4/7

1-1/3-2/3
=1-(1/3+2/3)
=1-1
=0

1+3/5-1/10
=1+6/10-1/10
=1+1/2
=1又1/2

3/8-12/13+5/8
=3/8+5/8-12/13
=1-12/13
=1/13

1-(1/2-3/4)
=1+3/4-2/4
=1+1/4
=5/4

1-1/2-1/4
=1/2-1/4
=2/4-1/4
=1/4

2/7-8/9+5/7
=(2/7+5/7)-8/9
=1-8/9
=1/9

2-1/4-3/4
=2-(1/4+3/4)
=2-1
=1

1/2-(3/8-1/2)
=1/2+1/2-3/4
=1-3/8
=5/8

Answer 3

什么脱式