| 1 | 2 | 3 |
|---|---|---|
| 99.37-10.21=89.16 | 67.66+19.9=87.56 | 68.61+30.79=99.4 |
| 45×5+10=235 | 76÷4+7=26 | 76-11=65 |
| 179÷5=35 …… 4 | 94-51=43 | 15+(81×50)=4065 |
| 35×25=875 | 51.07+90.57=141.64 | 47×34=1598 |
| 82×(44-8)=2952 | 16÷2+85=93 | 19+(38÷2)=38 |
| 42+41=83 | 66×(98+26)=8184 | 80×29=2320 |
| (48÷3)+24=40 | 51.01-6.42=44.59 | 62÷2+18=49 |
| 280÷4=70 | 61.46-35.13=26.33 | 63÷9=7 |
| $\frac{4}{47}$+$\frac{23}{47}$=$\frac{27}{47}$ | $\frac{4}{7}$-$\frac{3}{7}$=$\frac{1}{7}$ | $\frac{55}{57}$-$\frac{2}{57}$=$\frac{53}{57}$ |
| $\frac{19}{27}$+$\frac{4}{27}$=$\frac{23}{27}$ | $\frac{41}{69}$+$\frac{17}{69}$=$\frac{58}{69}$ | $\frac{49}{53}$-$\frac{1}{53}$=$\frac{48}{53}$ |
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