直接写出结果. - = | 4.5×102= | ×6= | 8÷1.6= |
| 0.42-0.32= | 36× = | 10×10%= | 7× ÷7× = |
1÷ × = | 13×(2+ )= | 12.87+3.65+1.35= | 74.6×19+19×25.4= |
解: - = , | 4.5×102=459, | ×6= , | 8÷1.6=5, |
| 0.42-0.32=0.07, | 36× = , | 10×10%=1, | 7× ÷7× = , |
1÷ × = , | 13×(2+ )=33, | 12.87+3.65+1.35=17.87, | 74.6×19+19×25.4=1900. |
,459,
,5,0.07
,1,
,
,33,17.87,1900.分析:按照整数、分数、小数的四则混合运算的顺序进行计算,能简算的要简算.
点评:此题考查整数、分数、小数的四则混合运算,能简算的要简.
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