题目内容

脱式计算.
360÷6-35
15+19×469+300÷340×5+20
(20+40)÷6(90-10)÷8200-90÷990-80÷2
65-90÷3.
(1)360÷6-35,
=60-35,
=25;

(2)15+19×4,
=15+76,
=91;

(3)69+300÷3,
=69+100,
=169;

(4)40×5+20,
=200+20,
=220;

(5)(20+40)÷6,
=60÷6,
=10;

(6)(90-10)÷8,
=80÷8,
=10;

(7)200-90÷9,
=200-10,
=190;

(8)90-80÷2,
=90-40,
=50;

(9)65-90÷3,
=65-30,
=35.
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