| 53+98= | 634-298= | 2.4÷0.04= | 125×8= | 640÷16= |
6÷ = | 1.29-0.18= | 13-7.2-2.8= |  = |  = |
| 0.25×0.4= |  = | 0.88+0.12= | 6.5+9.75+3.5= |  = |
 = |
| 53+98=151 | 634-298=336 | 2.4÷0.04=60 | 125×8=1000 | 640÷16=40 |
| 6÷=10 | 1.29-0.18=1.11 | 13-7.2-2.8=3 | =9 | =1 |
| 0.25×0.4=0.1 | = | 0.88+0.12=1 | 6.5+9.75+3.5=19.75 | =21 |
| =7 |
分析：按照整数、分数、小数的四则运算的方法正确计算．
点评：此题考查整数、分数、小数的四则运算．