脱式计算.能简算的要简算. (1)0.9+1.08+0.92+0.1 (2)32.54-10.46-4.54 (4)18.73+3.85-2.73 (5)6.07-4.36+5.49
编辑:chaxungu时间:2026-04-27 13:09:42分类:小学数学题库
脱式计算,能简算的要简算。
| (1)0.9+1.08+0.92+0.1 | (2)32.54-10.46-4.54 | | (3)3.78+(6.22+4.72) | (4)18.73+3.85-2.73 | | (5)6.07-4.36+5.49 | (6)45-(83.7-78.8) |
|
(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 | (6)原式= 45.6-4.9 = 40.7 |
|