题目内容
脱式计算
625÷25×78
2520÷18×24
(75+240)÷(20-5)
625÷25×78
2520÷18×24
(75+240)÷(20-5)
(1)625÷25×78
=25×78
=1950;
(2)2520÷18×24
=140×24
=3360;
(3)(75+240)÷(20-5)
=315÷15
=21.
=25×78
=1950;
(2)2520÷18×24
=140×24
=3360;
(3)(75+240)÷(20-5)
=315÷15
=21.
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