题目内容
脱式计算
240+160÷8 | 63×(102-59) | 25×40÷8 |
分析:(1)先算除法,再算加法,
(2)先算括号里的减法,再算乘法,
(3)先算乘法,再算除法.
(2)先算括号里的减法,再算乘法,
(3)先算乘法,再算除法.
解答:解:(1)240+160÷8,
=240+20,
=260;
(2)63×(102-59),
=63×43,
=2709;
(3)25×40÷8,
=1000÷8,
=125;
=240+20,
=260;
(2)63×(102-59),
=63×43,
=2709;
(3)25×40÷8,
=1000÷8,
=125;
点评:考查了整数四则混合运算顺序.
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