| 用运算律简便计算。 | ||||||||
|
| (1)41×99 =4100-41 =4059 | (2)560÷16=35 | (3)102×34 =3400+34×2 =3468 | (4)99×66+66 =66×100 =6600 |
| (5)9992+999 =999×1000 =999000 | (6)3800÷25÷4 =3800÷100 =38 | (7)22×383+617×22 =22×(383+617) =22000 |
编辑:chaxungu时间:2026-04-27 13:26:08分类:小学数学题库
| 用运算律简便计算。 | ||||||||
|
| (1)41×99 =4100-41 =4059 | (2)560÷16=35 | (3)102×34 =3400+34×2 =3468 | (4)99×66+66 =66×100 =6600 |
| (5)9992+999 =999×1000 =999000 | (6)3800÷25÷4 =3800÷100 =38 | (7)22×383+617×22 =22×(383+617) =22000 |