=
=
÷
=
=
×27=
=
÷6=
=
+口算：
| 95-8= | 50+480= | 597×4≈ | 49×9≈ | 200×5= | 56÷8= |
| 123×2= | 213×6≈ |  + = | 1- = | 9×3+7= | 98×0= |
直接写出结果：
| 2.2+3.57= | 1.125×8= | 35× = | 4- = |
1- -= | 1 ×8+8×= |  += | 2÷= |
| 3.25×4= | 1.9+0.1-1.9+0.1= |
| 95-8= | 50+480= | 597×4≈ | 49×9≈ | 200×5= | 56÷8= |
| 123×2= | 213×6≈ | += | 1-= | 9×3+7= | 98×0= |
| 2.2+3.57= | 1.125×8= | 35×= | 4-= |
| 1--= | 1×8+8×= | += | 2÷= |
| 3.25×4= | 1.9+0.1-1.9+0.1= |