题目内容
【题目】下列各题怎样简便就怎样算.
﹣÷+ | ×+÷ | (×﹣)÷ |
÷+÷ | ÷[+(1﹣)] | (+﹣)×24 |
【答案】;;;;;16
【解析】
试题分析:(1)先算除法,再算减法,最后算加法;
(2)先把除法变成乘法,再根据乘法分配律简算;
(3)先算小括号里面的乘法,再算小括号里面的减法,最后算括号外的除法;
(4)先把除法变成乘法,再根据乘法分配律简算;
(5)先算小括号里面的减法,再算中括号里面的加法,最后算括号外的除法;
(6)根据乘法分配律简算.
解答:解:(1)﹣÷+
=﹣+
=+
=;
(2)×+÷
=×+×
=×(+)
=×1
=;
(3)(×﹣)÷
=(﹣)÷
=÷
=
(4)÷+÷
=+×
=()×
=1×
=
(5)÷[+(1﹣)]
=÷[+]
=÷
=;
(6)(+﹣)×24
=×24+×24﹣×24
=18+12﹣14
=30﹣14
=16
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