下面各题怎样算简便就怎样算88.51-9.06-0.94132+16.4+268+23.63.028-20.44+66.97255.27+8.236-5.2764.6-3.46+5.4-6.5464.

题目简介

下面各题怎样算简便就怎样算88.51-9.06-0.94132+16.4+268+23.63.028-20.44+66.97255.27+8.236-5.2764.6-3.46+5.4-6.5464.

题目详情

下面各题怎样算简便就怎样算
88.51-9.06-0.94
132+16.4+268+23.63.028-20.44+66.972
55.27+8.236-5.2764.6-3.46+5.4-6.5464.3-18.75+15.7-11.25.
题型:解答题难度:中档来源:不详

答案

(1)88.51-9.06-0.94,
=88.51-(9.06+0.94),
=88.51-10,
=78.51;

(2)132+16.4+268+23.6,
=(132+268)+(16.4+23.6),
=400+40,
=440;

(3)3.028-20.44+66.972,
=(3.028+66.972)-20.44,
=70-20.44,
=49.56;

(4)55.27+8.236-5.27,
=(55.27-5.27)+8.236,
=50+8.236,
=52.236;

(5)64.6-3.46+5.4-6.54,
=(64.6+5.4)-(3.46+6.54),
=70-10,
=60;

(6)64.3-18.75+15.7-11.25,
=(64.3+15.7)-(18.75+11.25),
=80-30,
=50.

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