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计算下面各题:(能简便计算的要简便计算) (1)88×(38+144)(2)1021×122
问题详情
计算下面各题:(能简便计算的要简便计算)
参考答案
(1)88×(38+144),
=88×38+88×144,
=33+2,
=35;
(2)1021×1225×78,
=835×78,
=15;
(3)2325×14+14×225,
=(2325+225)×14,
=1×14,
=14;
(4)34×(910-56),
=34×115,
=120;
(5)1415×14+1415
=1415×(14+1),
=1415×15,
=14;
(6)4-825×154,
=4-65,
=245.
考点: