问题
解答题
计算下面各题,能简算的要简算.
|
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.