问题
解答题
脱式计算
62×74+62×53
74×(201-37)-356
(950-400)÷5+158
400+88×13-1048.
答案
(1)62×74+62×53
=62×(74+53)
=62×127
=7874;
(2)74×(201-37)-356
=74×164-356
=12136-356
=11780;
(3)(950-400)÷5+158
=550÷5+158
=110+158
=268;
(4)400+88×13-1048
=400+1144-1048
=1544-1048
=496.