A-A+
脱式计算 能简算的要简算:3-518×2740-1316=79÷115+29×511=65×
问题详情
3-
参考答案
(1)3-518×2740-1316,
=3-316-1316,
=3-(316+1316),
=3-1,
=2;
(2)79÷115+29×511,
=79×511+29×511,
=511×(79+29),
=511;
(3)65×101-65,
=65×(101-1),
=65×100,
=6500;
(4)70.2÷[(5.3-1.4)×0.2],
=70.2÷(3.9×0.2),
=70.2÷0.78,
=90;
(5)45×544,
=44×544+544,
=5544;
(6)14×4÷14×4,
=1×4×4,
=16.
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