用加法运算定律计算下面各题。
|
| (1)原式=(65+235)+240 =300+240 =540 | (2)原式=(123+77)+58 =200+58 =258 |
| (3)原式=(444+56)+85 =500+85 =585 | (4)原式=(51+49)+76 =100+76 =176 |
| (5)原式=(44+156)+85 =200+85 =285 | (6)原式=(27+173)+37 =200+37 =237 |
| (7)原式=(754+46)+(184+16) =800+200 =1000 |
编辑:chaxungu时间:2026-04-27 13:19:32分类:小学数学题库
用加法运算定律计算下面各题。
|
| (1)原式=(65+235)+240 =300+240 =540 | (2)原式=(123+77)+58 =200+58 =258 |
| (3)原式=(444+56)+85 =500+85 =585 | (4)原式=(51+49)+76 =100+76 =176 |
| (5)原式=(44+156)+85 =200+85 =285 | (6)原式=(27+173)+37 =200+37 =237 |
| (7)原式=(754+46)+(184+16) =800+200 =1000 |