问题
计算题
脱式计算,能简算的要简算。
|
答案
(1)原式=(0.9+0.1)+(1.08+0.92) | |
=1+2 | |
=3 | (2)原式=32.54-(10.46+4.54) |
=32.54-15 | |
=17.54 | |
(3)原式=3.78+6.22+4.72 | |
=10+4.72 | |
=14.72 | (4)原式=18.73-2.73+3.85 |
=16+3.85 | |
=19.85 | |
(5)原式=1.71+5.49 |
=7.2
= 40.7
脱式计算,能简算的要简算。
|
(1)原式=(0.9+0.1)+(1.08+0.92) | |
=1+2 | |
=3 | (2)原式=32.54-(10.46+4.54) |
=32.54-15 | |
=17.54 | |
(3)原式=3.78+6.22+4.72 | |
=10+4.72 | |
=14.72 | (4)原式=18.73-2.73+3.85 |
=16+3.85 | |
=19.85 | |
(5)原式=1.71+5.49 |
=7.2
= 40.7