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प्रश्न
Circle the correct multiplication fact (by using method of casting out nine).
723 × 24 = 17508
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उत्तर
723 × 24 = 17508
3 × 6 = 12
18 = 12
1 + 8 = 1 + 2
9 = 3
The multiplication is not correct.
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संबंधित प्रश्न
Circle the correct addition fact (by using casting out nine).
7632 + 2213 = 9845
Circle the correct addition fact (by using casting out nine).
4355 + 5369 = 9724
Circle the correct addition fact (by using casting out nine).
2436 + 5315 = 7701
Circle the correct subtraction fact (by using casting out nine).
2362 – 632 = 1720
Circle the multiples of 9
25, 27, 35, 36, 45, 46, 54, 55
Take any number. Now multiply it by 2, 3, 4 ............... at every step. Also, add 3 to it at each step. Look at the difference in the answer. Is it the same at every step?

Now try doing it with some other number and also take a different number to add at each step.
What if someone gives you to add ten numbers together?

Did you notice some pattern in the answers?
Take the first two odd numbers. Now add them, see what you get. Now, at every step, add the next odd number.|

How far can you go on?
Write a set of clues for a secret number of your own. Then give it to a friend to guess your secret number.
