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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 multiples of 9 (by using casting out nine).
23769
90, 180, 270, _______, ________, ________.
Complete the following sequence.
| A100 | C300 | E500 |
Complete the following sequence.
9 × 111 = 999
9 × 222 = 1998
9 × 333 = 2997
9 × 444 = ________
9 × 555 = ________
9 × 666 = ________
A city is planned in such a way that every 5 km has a circle and has 4 signals around.
So, can you guess where the signals and circle are there?
How many signals are needed for a 20 km distance?
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.
Now try doing it with some other number and also take a different number to add at each step.
Look at the numbers below. Look for the pattern. Can you take it forward?
What if someone gives you to add ten numbers together?
Did you notice some pattern in the answers?
Number Surprises
