题目内容
脱式计算:
64×7÷8
=
=
(702-147)÷5
=
=
630÷(2×3)
=
=
64×7÷8
=
=
(702-147)÷5
=
=
630÷(2×3)
=
=
考点:整数四则混合运算
专题:运算顺序及法则
分析:(1)按照从左到右的顺序计算;
(2)先算减法,再算除法;
(3)先算乘法,再算除法.
(2)先算减法,再算除法;
(3)先算乘法,再算除法.
解答:
解:(1)64×7÷8
=64÷8×7
=56;
(2)(702-147)÷5
=555÷5
=111;
(3)630÷(2×3)
=630÷6
=105.
=64÷8×7
=56;
(2)(702-147)÷5
=555÷5
=111;
(3)630÷(2×3)
=630÷6
=105.
点评:整数混合运算的关键是抓住运算顺序,正确按运算顺序计算即可.
练习册系列答案
相关题目