问题 解答题
简便计算
14.35+3.98+2.6512.5-8.14-1.8623.1-(12.1-2.46)
125×5656×75+44×75101×43-43.
答案

(1)14.35+3.98+2.65

=14.35+2.65+3.98

=17+3.98

=20.98;

(2)12.5-8.14-1.86

=12.5-(8.14+1.86)

=12.5-10

=2.5;

(3)23.1-(12.1-2.46)

=23.1-12.1+2.46

=11+2.46

=13.46;

(4)125×56

=125×8×7

=1000×7

=7000;

(5)56×75+44×75

=(56+44)×75

=100×75

=7500;

(6)101×43-43

=(101-1)×43

=100×43

=4300.

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