问题
解答题
简便计算.
6.73-(3.73-2.24)
1.27+2.9+0.73+16.1
12.75-(1.1+2.75)
3.35-4.68+2.65.
答案
(1)6.73-(3.73-2.24)
=6.73-3.73-2.24
=3-2.24
=0.76;
(2)1.27+2.9+0.73+16.1
=(1.27+0.73)+(2.9+16.1)
=2+19
=21;
(3)12.75-(1.1+2.75)
=12.75-2.75-1.1
=10-1.1
=8.9;
(4)3.35-4.68+2.65
=3.35+2.65-4.68
=6-4.68
=1.32.