问题 解答题
用递等式计算.
(1)35+180÷20+10(2)(43+17)÷(36÷6)(3)(220+120)÷(20-16)(4)210÷7×22×5.
答案

(1)35+180÷20+10,

=35+9+10,

=44+10,

=54;

(2)(43+17)÷(36÷6),

=60÷6,

=10;

(3)(220+120)÷(20-16),

=340÷4,

=85;

(4)210÷7×22×5,

=30×22×5,

=660×5,

=3300.

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