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Question
Circle the correct division fact (by using method of casting out nine).
728 ÷ 4 = 182
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Solution
728 ÷ 4 = 182
8 ÷ 4 = 2
8 = 2 × 4
8 = 8
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| Red | Yellow/Orange | Green | Red | Green |
| 7:30 a.m |
Look at the calendar below.
Let us mark 3 × 3 boxes (9 dates) on the calendar and see some magic.
| Take the smallest number | 3 |
| Add 8 to it | +8 |
| = | 11 |
| Multiply it by 9 | ×9 |
| Total | 99 |
Now you choose any 3 × 3 boxes from a calendar and find the total in the same way.
