题干

口算.

24×5=____  22+39=____  66÷6=____  700+600=____  49+307=____

84﹣37=____  112×8=____  20×50=____  900﹣210=____  54÷9=____

16×50=____  4000÷8=____  370+130=____  5﹣2.2=____  3000+190=____

4+1.2=____  640÷2=____  150×3×0=____  5+40×8=____  200÷5﹣3=____

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答案(点此获取答案解析)

120,61,11,1300,356,47,896,1000,690,6,800,500,500,2.8,3190,5.2,320,0,325,37