问题 解答题
用简便方法计算下面各题
245-65-35186+82+1825×(4×27)
8×(25+20)24×56+44×24700÷4÷25
答案

(1)245-65-35,

=245-(65+35),

=245-100,

=145;

(2)186+82+18,

=186+(82+18),

=186+100,

=286;

(3)25×(4×27),

=(25×4)×27,

=100×27,

=2700;

(4)8×(25+20),

=8×25+8×20,

=200+160,

=360;

(5)24×56+44×24,

=24×(56+44),

=24×100,

=2400;

(6)700÷4÷25,

=700÷(4×25),

=700÷100,

=7.

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