5.8÷0.7+0.42÷0.07+40÷7,
=58÷7+42÷7+40÷7,
=(58+42+40)÷7,
=140÷7,
=20.
猜你喜欢
- 1小明看一本120页的故事书,每天看1/10,已经看了3天,还有几分之几没有看?
- 2如图所示电路中二极管为理想二极管,判断它是否导通,求出U0?
- 3I'd like _______ bowls of noodles .One is beef ,the others are chicken .A.one B.two C.three D.four
- 455^2*7-45^2*7用因式分解法计算
- 5在三角形abc中,内角A,B,C的对边长分别是a,b,c,且abc成等差数列.若sinA,sinB,sinC,成等比
- 6last week i read an english book对read an english book提问
- 7玻璃属不属于晶体?
- 8she's looking at the cat.
- 9刘禹锡写的古诗有哪些?
- 10如图,大正方形边长为4厘米,阴影部分面积为14平方厘米,小正方形边长是多少厘米?