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=________. |
42 81 18 12 28 39 54 40 14 32
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: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.
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.
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: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.
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.
练习册系列答案
相关题目