问题 解答题
计算下面各题,能简算的要简算.
10-3.57-5.4334.82-(3.82+15.2)5.86-0.78+0.2263.7-2.36-13.7-5.64.
答案

(1)10-3.57-5.43,

=10-(3.57+5.43),

=10-9,

=1;

(2)34.82-(3.82+15.2),

=34.82-3.82-15.2,

=31-15.2,

=15.8;

(3)5.86-0.78+0.22,

=5.08+0.22,

=5.3;

(4)63.7-2.36-13.7-5.64,

=63.7-13.7-(5.64+2.36),

=50-8,

=42.

选择题
单项选择题