题目内容
口算: 6×7= |
9×9= |
3×6= |
2×6= |
8×3+4= |
41-2= |
6×9= |
8×5= |
7×2= |
7×5-3= |
分析:依据整数四则运算顺序,先算第二级运算,再算第一级运算求解.
解答:解:6×7=42,9×9=81,3×6=18,2×6=12,
8×3+4=28,41-2=39,6×9=54,8×5=40,
7×2=14,7×5-3=32.
故答案为:42,81,18,12,28,39,54,40,14,32.
8×3+4=28,41-2=39,6×9=54,8×5=40,
7×2=14,7×5-3=32.
故答案为:42,81,18,12,28,39,54,40,14,32.
点评:本题主要考查了学生对于整数四则运算顺序的掌握情况.
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