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脱式计算 能简算的要简算.(14+18+116)÷12415×11-59×34-59×141
问题详情
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参考答案
(1)(14+18+116)÷124,
=(14+18+116)×24,
=24×14+18×24+116×24,
=6+3+32,
=9+32,
=1012;
(2)15×11-59×34-59×14,
=(15×11)-[59×(34+14)],
=(15×11)-(59×1),
=115-59,
=7445;
(3)12×(23+14-16),
=12×23+12×14-12×16,
=8+3-2,
=9;
(4)(112+347)×12-36÷47,
=112×12+347×12-36÷47,
=1+3647-3647,
=1+(3647-3647),
=1+0,
=1;
(5)23-89×34÷127,
=23-23÷127,
=23-18,
=5;
(6)[1-(14+38)]÷14,
=[1-58]÷14,
=38÷14,
=32.
考点: