直接写出结果. × = | 24÷ = | 0÷7.982= | 10+10%= |
| 100-2.5-7.5= | 0.25×12.5÷ = | × ÷ × = |
解: × = ; | 24÷ =32; | 0÷7.982=0; | 10+10%=10.1; |
| 100-2.5-7.5=90; | 0.25×12.5÷ =100; | × ÷ × =0.64. |
,32,0,10.1,90,100,0.64.分析:依据四则运算计算方法,先算第二级运算,再算第一级运算,如果只含有同一级运算,按照从左到右顺序计算,有括号先算括号里面的解答.
点评:个别题目在解答时要合理运用简便算法.
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