题目内容
递等式计算
360÷15×6-6
200-225÷5+108
(32+64)÷3×4.
360÷15×6-6
200-225÷5+108
(32+64)÷3×4.
分析:(1)先算除法,再算乘法,最后算减法;
(2)先算除法,再按照从左到右的顺序计算;
(3)先算加法,再按照从左到右的顺序计算.
(2)先算除法,再按照从左到右的顺序计算;
(3)先算加法,再按照从左到右的顺序计算.
解答:解:(1)360÷15×6-6
=24×6-6
=144-6
=138;
(2)200-225÷5+108
=200-45+108
=155+108
=263;
(3)(32+64)÷3×4
=96÷3×4
=32×4
=128.
=24×6-6
=144-6
=138;
(2)200-225÷5+108
=200-45+108
=155+108
=263;
(3)(32+64)÷3×4
=96÷3×4
=32×4
=128.
点评:计算抓住运算顺序,正确按运算顺序计算即可.
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