题目内容
脱式计算.
46×8-175 45+35×9 (718+14)÷6
23+7×16 96÷4×2 236×(25÷5)
46×8-175 45+35×9 (718+14)÷6
23+7×16 96÷4×2 236×(25÷5)
分析:(1)先算乘法,再算减法;
(2)(4)先算乘法,再算加法;
(3)先算加法,再算除法;
(5)按照从左到右的顺序计算;
(6)先算除法,再算乘法.
(2)(4)先算乘法,再算加法;
(3)先算加法,再算除法;
(5)按照从左到右的顺序计算;
(6)先算除法,再算乘法.
解答:解:(1)46×8-175
=368-175
=193;
(2)45+35×9
=45+315
=360;
(3)(718+14)÷6
=732÷6
=122;
(4)23+7×16
=23+112
=135;
(5)96÷4×2
=24×2
=48;
(6)236×(25÷5)
=236×5
=1180.
=368-175
=193;
(2)45+35×9
=45+315
=360;
(3)(718+14)÷6
=732÷6
=122;
(4)23+7×16
=23+112
=135;
(5)96÷4×2
=24×2
=48;
(6)236×(25÷5)
=236×5
=1180.
点评:混合运算的关键是抓住运算顺序,按运算顺序正确计算即可.
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