题目内容

【题目】能简算的要简算.

×÷ ÷(+×7+×11

+)×24 ×99+ ÷[﹣(+]

【答案】

×÷

=

=1;

÷(

=

=

=

×7+×11

=

=10;

④()×24

=

=8+6﹣1

=13;

×99+

=

=

=16;

÷[]

=

=÷

=

=

【解析】

试题分析:①×÷,把除数转化为乘它的倒数,再根据分数乘法的计算法则计算;

÷(),先算括号里面的加法,再算除法;

×7+×11,运用乘法分配律简算;

④()×24,运用乘法分配律简算;

×99+,运用乘法分配律简算;

÷[],先算小括号里面的加法,再算中括号里面的减法,最后算除法.

解:①×÷

=

=1;

÷(

=

=

=

×7+×11

=

=10;

④()×24

=

=8+6﹣1

=13;

×99+

=

=

=16;

÷[]

=

=÷

=

=

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