3.14×32 | 40%+20% | + | ÷4 |
×4﹣2 | 39×× | ÷50% | 100%﹣1 |
0.2﹣= | 60%+0.4= | (+)×6= | ÷25%= |
×2÷×2= | 13﹣﹣= | 0.56×= | ×0.34×400= |
47.3﹣17+1﹣2.25 | 243×8+75.7×82.5 | 15.3﹣4.5÷0.18×56% |
765÷17×36﹣620 | 1÷[﹣(﹣)] | 2015× |
A. | B. |
C. | D. |
﹣= | 48÷1.2= | 2.4÷0.06= | 8.3+6= |
9.5÷1%= | ÷18= | 7.2﹣0.48= | 99×= |
2﹣= | 118÷198×0= | ﹣= | ×4÷×4= |
20.86﹣5.63﹣4.37 | 624÷6﹣38 | 12.5×32×25% |
÷[(+)×] | (+)×24 | 69÷(2.4×+1.5) |
﹣= | += | ×12= |
÷= | ÷20%= | 4.8+2%= |