A-A+
计算下面各题 能简算的要简算.914×14×2983×8182417×(125×34)16×
问题详情
参考答案
(1)914×14×29
=9×29
=2;
(2)83×8182
=(82+1)×8182
=82×8182+1×8182
=81+8182
=818182;
(3)417×(125×34)
=417×34×125
=8×125
=1000;
(4)16×(12-18)
=16×12-16×18
=8-2
=6;
(5)25×210+910
=225+910
=4950;
(6)1-514×29
=1-563
=5863;
(7)56×18×16
=56×(18×16)
=56×2
=53;
(8)16×58-514
=10-514
=9914;
(9)910×20×47
=18×47
=727.
考点: