问题
计算题
脱式计算。(能简算的要写出简算过程)
|
答案
(1)0.16+14.95+5.84 | |
=(0.16+5.84)+14.95 | |
=6+14.95 | |
=20.95 | (2)13.74+7.28-6.77 |
=21.02-6.77 | |
=14.25 | |
(3)1.59+3.3-0.59+6.7 | |
=(1.59-0.59)+(3.3+6.7) | |
=1+10 | |
=11 | (4)7.02-4.5+0.98 |
=(7.02+0.98)-4.5 |
=8-4.5
=3.5