问题 解答题
用合理的方法计算.
30600÷(6+4×2+4)
5.08-(1.08+2.59)20-(3.7-1.55+0.82)
18.44+7.17+2.83+1.5613.6-4.25-5.75[240+(124-118)×12]÷8.
答案

(1)30600÷(6+4×2+4)

=30600÷18,

=1700;

(2)5.08-(1.08+2.59)

=5.08-1.08-2.59,

=4-2.59,

=1.41;

(3)20-(3.7-1.55+0.82)

=20-(2.15+0.82),

=20-2.97,

=17.03;

(4)18.44+7.17+2.83+1.56

=(18.44+1.56)+(7.17+2.83),

=20+10,

=30;

(5)13.6-4.25-5.75

=13.6-(4.25+5.75),

=13.6-10,

=3.6;

(6)[240+(124-118)×12]÷8

=[240+6×12]÷8,

=[240+72]÷8,

=240÷8+72÷8,

=30+9,

=39.

问答题
单项选择题