题目内容

脱式计算.
36÷4×59×(75+15)25×4×6128+840÷6(270-198)×546-12×3.
(1)36÷4×5,
=9×5,
=45;

(2)9×(75+15),
=9×90,
=810;

(3)25×4×6,
=100×6,
=600;

(4)128+840÷6,
=128+140,
=268;

(5)(270-198)×5,
=72×5,
=360;

(6)46-12×3,
=46-36,
=10.
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