问题
解答题
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答案
(1)89+124+11+76
=(89+11)+(124+76),
=100+200,
=300;
(2)125×64
=125×8×8,
=1000×8,
=8000;
(3)975-147-23
=975-(147+23),
=975-170,
=805;
(4)3000÷125÷8
=3000÷(125×8),
=3000÷1000,
=3;
(5)134×8+8×66
=(134+66)×8,
=200×8,
=1600;
(6)365×99
=365×(100-1),
=365×100-365,
=36500-365,
=36135.