直接写出得数
| 35+17= | 500×0= | 56÷7= | 65-36= | 800×2= |
| 198×5≈ | 72÷9= | 27+109= | 500×4= | 84-40= |
| 40÷8= | 102×8= | 150+140= | 350-60= | 73×0= |
| 3100-600= | 400-0= | 60×9= | 412×9≈ | 112×8= |
| 6500-500= | 220-70= | 62÷8= | 0×234= |  + = |
 -= | 1- = |  - = | 200×5= | 98×9≈ |
| 3×90= | 350+170= | 33÷5= | 45-27= | 51-15= |
| 15÷4= | + - = | 1- = |  - = |  - = |
递等式计算，能简算的要简算．
| 4.8×0.25 | 2.33×0.5×4 | 1.2×2.5+0.8×2.5 |
| 50.4×1.9-1.9 | 3.7×0.25+4 | 0.65×201． |
） 
+（6.4-4
）×
]÷
+
）×23×19 
×12.5%+0.125．