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Question
Circle the correct addition fact (by using casting out nine).
4355 + 5369 = 9724
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Solution
4355 + 5369 = 9724
4355 + 5369 = 9724
8 + 5 = 4
13 = 4
1 + 3 = 4
4 = 4
4
The addition is correct.
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The school bell rings once in an hour, to indicate that the session ends/next session begins. And for break, it will be 20 minutes. Shall we try to fill this up?
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| Period 1 | Period 2 | Break | Period 3 | Period 4 | Break | Period 5 | Period 6 |
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| Red | Yellow/Orange | Green | Red | Green |
| 7:30 a.m |
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Now try doing it with some other number and also take a different number to add at each step.
Number Surprises
Look at this pattern of numbers and take it forward.
1 = 1 × 1
121 = 11 × 11
12321 = 111 × 111
1234321 = ?
