Advertisements
Advertisements
Question
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.
Advertisements
Solution
Take the smallest number = 4
Add 8 to it, 4 + 8 = 12
Multiplying it by 9, 12 × 9 = 108
So, the sum of all the numbers in the selected box is 108.
APPEARS IN
RELATED QUESTIONS
Circle the correct division fact (by using method of casting out nine).
728 ÷ 4 = 182
Circle the correct addition fact (by using casting out nine).
6023 + 3203 = 9220
90, 180, 270, _______, ________, ________.
A9, B18, C27, D36, _______, ________, _________.
Complete the following sequence.
9 × 6 = 54
9 × 66 = 594
9 × 666 = 5994
9 × 6666 = 5 ______ 4
9 × 666666 = _____________
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?
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?
Number Surprises
