题目内容
脱式计算. 800-24×5= |
360+25×4= | 125×6×7= |
分析:(1)先算乘法,再算减法;
(2)先算乘法,再算加法;
(3)从左往右依次计算.
(2)先算乘法,再算加法;
(3)从左往右依次计算.
解答:解:(1)800-24×5
=800-120
=680
(2)360+25×4
=360+100
=460
(3)125×6×7
=750×7
=5250.
=800-120
=680
(2)360+25×4
=360+100
=460
(3)125×6×7
=750×7
=5250.
点评:此题主要考查整数的四则混合运算的运算顺序和运算法则.
练习册系列答案
相关题目