脱式计算. (1)3.52+8.4+2.6 (2)42.24-6.24-3.76 (3)5.94+6.7+1.06+0.3 (4)4.92+3.27-4.92+3.73
编辑:chaxungu时间:2026-04-27 13:10:47分类:小学数学题库
脱式计算。
| (1)3.52+8.4+2.6 | (2)42.24-6.24-3.76 | | (3)5.94+6.7+1.06+0.3 | (4)4.92+3.27-4.92+3.73 |
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(1)原式=3.52+(8.4+2.6) =3.52+11 =14.52 | (2)原式=42.24-(6.24+3.76) =42.24-10 =32.24 | (3)原式=(5.94+1.06)+(6.7+0.3) =7+7 =14 | (4)原式=(4.92-4.92)+(3.27+3.73) =0+7 =7 |
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