脱式计算。
|
| (1)原式=(467+108)÷23 =575÷23 =25 | (2)原式=20+300 =320 |
| (3)原式=(645-321)÷36 =324÷36 =9 | (4)原式= 405×(20-14) = 405×6 =2430 |
编辑:chaxungu时间:2026-04-27 13:24:41分类:小学数学题库
脱式计算。
|
| (1)原式=(467+108)÷23 =575÷23 =25 | (2)原式=20+300 =320 |
| (3)原式=(645-321)÷36 =324÷36 =9 | (4)原式= 405×(20-14) = 405×6 =2430 |