题目内容
脱式计算.
(75+33)×6 | 105×2÷5 | 900-240×3 |
分析:(1)先算小括号里的加法,再算括号外的乘法;
(2)从左向右进行计算即可;
(3)先算乘法,再算减法.
(2)从左向右进行计算即可;
(3)先算乘法,再算减法.
解答:解:(1)(75+33)×6,
=108×6,
=648;
(2)105×2÷5,
=210÷5,
=42;
(2)900-240×3,
=900-720,
=180.
=108×6,
=648;
(2)105×2÷5,
=210÷5,
=42;
(2)900-240×3,
=900-720,
=180.
点评:此题考查了整数四则混合运算的顺序,注意验算顺序,认真计算即可.
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