偶也在找啊
不過(guò)偶就大發(fā)慈悲
前兩題偶會(huì)的!（算式哦!）
1.（199-47)÷2
=152÷2
=76（枚）
2.10+1=11(分） 15+1=16（分）
11×16=176（分）=2時(shí)56分
5:時(shí)30分+2時(shí)56分=8時(shí)26分
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偶又找到了一題了!
3.（1）20×8×2+20×10×2+8×10×2
=320+400+160
=880（平方分米）
（2）20×8×4
=160×4
=640（立方分米）
640÷（10×8）
=640÷80
=8（分米）
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經(jīng)過(guò)偶的九牛二虎之力終于幫你搜到了!
好難搜的!
沒人回答的!(>_