| 直接写出得数 (1)3.57+4.3= | (2)1÷ = | (3)0.18÷0.15×0= | (4) ÷3× ÷3= |
| (5)0.74×100= | (6) + = | (7) - + = | (8)6+( +2)= |
(9) ÷ × = | (10)15×( + )=. |
| 解:(1)3.57+4.3=7.87; | (2)1÷ =0.3; | (3)0.18÷0.15×0=0; | (4) ÷3× ÷3=0.04; |
| (5)0.74×100=74; | (6) + = ; | (7) - + = ; | (8)6+( +2)= ; |
(9) ÷ × = ; | (10)15×( + )=8. |
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,8.分析:(1)(5)依据小数四则运算计算方法解答,
(2)(4)(6)(7)(8)(9)依据分数四则运算计算方法解答,
(3)根据任何数乘0都得0解答,
(10)运用乘法分配律解答.
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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