| 1 | 2 | 3 |
|---|---|---|
| 72-24=48 | 30+25=55 | 56-4=52 |
| 400÷8=50 | 118×89=10502 | 20×52=1040 |
| 56×40=2240 | 42×141=5922 | 390÷5=78 |
| 18+83×44=3670 | 52+(34÷2)=69 | 3÷3+45=46 |
| 48+(42÷2)=69 | 41×(78+31)=4469 | 32+(20÷4)=37 |
| 99.82-86.06=13.76 | 78.37+17.94=96.31 | 24.49+73.1=97.59 |
| 23.61+75.86=99.47 | 4.21+89.51=93.72 | 64.1-57.28=6.82 |
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