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