| 口算 8÷ = | 9.7+0.03= | ÷3= | 4.5× = |
| 7.8×9.9+7.8= | 7÷1.4= | × = | 5-4÷ = |
| 40002÷25÷8= | 10- - = | 538÷9≈ | 1.25×0.16×8= |
解:8÷ =32; | 9.7+0.03=9.73; | ÷3=0.125; | 4.5× =2.5; |
| 7.8×9.9+7.8=85.02; | 7÷1.4=5; | × = ; | 5-4÷ =0; |
| 40002÷25÷8=200.01; | 10- - =9; | 538÷9≈60; | 1.25×0.16×8=1.6. |
,0,200.01,9,60,1.6.分析:(1)(3)(4)(7)(8)(10)依据分数四则运算计算方法解答,
(2)(5)(6)(12)依据小分数四则运算计算方法解答,
(9)依据整数除法计算方法解答,
(11)把538看作540解答.
点评:本题主要考查学生运用四则运算计算方法解决问题的能力.
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