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प्रश्न
Ask your friend rite — W down your A age. dd 5 to it. Multiply the sum by 2. Subtract 10 from it. Next, divide it by 2. What do you get?
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उत्तर
Let the age of my friend be 9 years.
Adding 5 to it, we get
9 + 5 = 14
Multiplying this sum by 2, we get
14 × 2 = 28
Subtracting 10 from 28, we get
28 − 10 = 18
Dividing it by 2, we get
18 ÷ 2 = 9
The answer is the same as my friend’s age.
संबंधित प्रश्न
Circle the multiples of 9 (by using casting out nine).
13476
Circle the correct division fact (by using method of casting out nine).
7785 ÷ 9 = 865
Circle the correct addition fact (by using casting out nine).
6023 + 3203 = 9220
Circle the correct multiplication fact (by using method of casting out nine).
723 × 24 = 17508
A9, B18, C27, D36, _______, ________, _________.
Complete the following sequence.
125, 150, 175, ______, ______, _______.
Complete the following sequence.
100, 400, 700, ______, _______, ________.
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.
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?
Write a set of clues for a secret number of your own. Then give it to a friend to guess your secret number.
