Advertisements
Advertisements
Question
Write a set of clues for a secret number of your own. Then give it to a friend to guess your secret number.
Advertisements
Solution
A set of clues to find the secret number is as follows:
- It is larger than half of 100.
- It is more than 6 tens and less than 7 tens.
- The tens digit is two less than the one's digit.
- The sum of the digits is 14.
- Find the secret number.
- It is smaller than half of 100.
- It is more than 3 tens and less than 4 tens.
- The digit sum is 10.
- Find the secret number.
APPEARS IN
RELATED QUESTIONS
Circle the multiples of 9 (by using casting out nine).
23769
Circle the correct division fact (by using method of casting out nine).
728 ÷ 4 = 182
Circle the correct division fact (by using method of casting out nine).
1580 ÷ 20 = 78
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).
2436 + 5315 = 7701
Circle the correct multiplication fact (by using method of casting out nine).
312 × 36 = 11232
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?
Here is the time table.
| Period 1 | Period 2 | Break | Period 3 | Period 4 | Break | Period 5 | Period 6 |
| 9:00 | 10:00 | 11:00 | 2:40 |
Imagine you are a traffic inspector. You are asked to design the traffic signal timings. Can you design it?
| Red | Yellow/Orange | Green | Red | Green |
| 7:30 a.m |
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?

Look at this pattern of numbers and take it forward.
1 = 1 × 1
121 = 11 × 11
12321 = 111 × 111
1234321 = ?
