Question

小学六年级数学计算题哦

3/5x+0.8=5.61.4:x=1:0.752.想怎么简便就怎么算。50.4X2.7+24.48除以249.4-5-2又2/5（2-3/32+3/4）除以1/4[4-(0.5+2）X0.75

Answer 1

3/5x+0.8=5.6
解：0.6x=4.8
x=4.8÷0.6
x=8
1.4:x=1:0.75
解：x=1.4×0.75
x=1.05
50.4X2.7+24.48÷24
=（50+0.4）×2.7+（24+0.48）÷24
=50×2.7+0.4×2.7+24÷24+0.48÷24
=135+1.08+1+0.02
=（135+1）+（1.08+0.02）
=136+1.1
=137.1
9.4-5-2又2/5
=9.4-2.4-5
=7-5
=2
（2-3/32+3/4）÷1/4
=（2-3/32+3/4）×4
=2×4-3/32×4+3/4×4
=8-1/8+3
=11-1/8
=10又7/8

[4-(0.5+2）]X0.75
=[2-0.5]×3/4
=2×3/4-1/2×3/4
=3/2-3/8
=9/8

Answer 2

2012-6-25 18:03 语文与数学
| 六级 3/5x+0.8=5.6
解：0.6x=4.8
x=4.8÷0.6
x=8
1.4:x=1:0.75
解：x=1.4×0.75
x=1.05
50.4X2.7+24.48÷24
=（50+0.4）×2.7+（24+0.48）÷24
=50×2.7+0.4×2.7+24÷24+0.48÷24
=135+1.08+1+0.02
=（135+1）+（1.08+0.02）
=136+1.1
=137.1
9.4-5-2又2/5
=9.4-2.4-5
=7-5
=2
（2-3/32+3/4）÷1/4
=（2-3/32+3/4）×4
=2×4-3/32×4+3/4×4
=8-1/8+3
=11-1/8
=10又7/8

[4-(0.5+2）]X0.75
=[2-0.5]×3/4
=2×3/4-1/2×3/4
=3/2-3/8
=9/8

Answer 3

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Answer 4

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可爱的de是谁可爱的de是谁

Answer 5

啊