题目内容
() | |
. |
解:(1)75×+24×,
=(75+24+1)×,
=100×,
=60;
(2)(),
=,
=1.5;
(3)3÷4,
=3÷(4),
=3÷1,
=3;
(4),
=()×,
=,
=.
分析:(1)(4)运用乘法分配律解答,
(2)按照先算括号里面的,再算括号外面的顺序解答,
(3)依据除法性质解答.
点评:成本题要注意分析式中数据,运用合适的简便方法计算,注意计算的顺序.
=(75+24+1)×,
=100×,
=60;
(2)(),
=,
=1.5;
(3)3÷4,
=3÷(4),
=3÷1,
=3;
(4),
=()×,
=,
=.
分析:(1)(4)运用乘法分配律解答,
(2)按照先算括号里面的,再算括号外面的顺序解答,
(3)依据除法性质解答.
点评:成本题要注意分析式中数据,运用合适的简便方法计算,注意计算的顺序.
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