题目内容
脱式计算
368÷4×7 | 913-130×6 | 7×(270-180) | 72÷9×125. |
分析:(1)从左向右进行计算;
(2)先算乘法,再算减法;
(3)先算小括号里的减法,再算括号外的乘法;
(4)从左向右进行计算,
(2)先算乘法,再算减法;
(3)先算小括号里的减法,再算括号外的乘法;
(4)从左向右进行计算,
解答:解:(1)368÷4×7,
=92×7,
=644;
(2)913-130×6,
=913-780,
=133;
(3)7×(270-180),
=7×90,
=630;
(4)72÷9×125,
=8×125,
=1000.
=92×7,
=644;
(2)913-130×6,
=913-780,
=133;
(3)7×(270-180),
=7×90,
=630;
(4)72÷9×125,
=8×125,
=1000.
点评:本题考查了整数四则混合运算的顺序.
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