问题 解答题
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.
答案

(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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