递等式计算。(能简算的要简算)
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| (1)原式=990÷55-5 =18-5 =13 | (2)原式=(63+30)-29 =93-29 =64 |
| (3)原式=63.64-(18.67+1.33) =63.64-20 = 43.64 | (4)原式=29.38-19.38+4.76 =10+4.76 =14.76 |
| (5)原式=13.67-2.97+25.8 =10.7+25.8 =36.5 | (6)原式=7.06+13.78-2.78 =7.06+11 =18.06 |
编辑:chaxungu时间:2026-04-27 13:25:21分类:小学数学题库
递等式计算。(能简算的要简算)
|
| (1)原式=990÷55-5 =18-5 =13 | (2)原式=(63+30)-29 =93-29 =64 |
| (3)原式=63.64-(18.67+1.33) =63.64-20 = 43.64 | (4)原式=29.38-19.38+4.76 =10+4.76 =14.76 |
| (5)原式=13.67-2.97+25.8 =10.7+25.8 =36.5 | (6)原式=7.06+13.78-2.78 =7.06+11 =18.06 |