题目内容
| 932-126+26 | 168+125-72 | 96÷12×5 |
| 23×5-201÷3 | 162÷6+35×1 | 154-640÷8+120. |
分析:(1)先算减法,再算加法;
(2)先算加法,再算减法;
(3)先算除法,再算乘法;
(4)先算乘法和除法,再算减法;
(5)先算除法和乘法,再算加法;
(6)先算除法,再算减法,最后算加法.
(2)先算加法,再算减法;
(3)先算除法,再算乘法;
(4)先算乘法和除法,再算减法;
(5)先算除法和乘法,再算加法;
(6)先算除法,再算减法,最后算加法.
解答:解:
(1)932-126+26,
=806+26,
=832;
(2)168+125-72,
=293-72,
=221;
(3)96÷12×5,
=8×5,
=40;
(4)23×5-201÷3,
=115-67,
=48;
(5)162÷6+35×1,
=27+35,
=62;
(6)154-640÷8+120,
=154-80+120,
=74+120,
=194.
(1)932-126+26,
=806+26,
=832;
(2)168+125-72,
=293-72,
=221;
(3)96÷12×5,
=8×5,
=40;
(4)23×5-201÷3,
=115-67,
=48;
(5)162÷6+35×1,
=27+35,
=62;
(6)154-640÷8+120,
=154-80+120,
=74+120,
=194.
点评:此题主要考查整数的四则混合运算的运算顺序和应用运算定律进行简便计算.
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