A-A+
怎样简便就怎样计算:910×78÷(45+14)5-78-0.125(14-14×12)÷1
问题详情
参考答案
(1)910×78÷(45+14),
=6380÷2120,
=34;
(2)5-78-0.125,
=5-(78+0.125),
=5-1,
=4;
(3)(14-14×12)÷14,
=(14-14×12)×4,
=14×4-14×12×4,
=1-12,
=12;
(4)56+98×59×89,
=56+98×89×59,
=56+59,
=2518;
(5)9×56+56÷19,
=9×56+56×9,
=9×(56+56),
=9×53,
=15;
(6)79×(1÷78+87÷1),
=79×(87+87),
=79×167,
=169;
(7)3450×47-47×950,
=(3450-950)47,
=12×47,
=27;
(8)99×99100,
=(100-1)×99100,
=100×99100-1×99100,
=99-99100,
=981100.
考点: