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प्रश्न
Is this magic possible on a 10 × 10 number chart? Go to the Chapter ‘Fun with Numbers’ and check.
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उत्तर
check with a 10 × 10 number chart
Yes, the magic works in a 10 × 10 number chart also.
The cross lines- 1 + 12 + 23+ … + 89+ 100 = 505
and 10 + 19 + 28+ … + 82 + 91 = 505
As there is no middle line, we have to get average sum of both horizontal lines
5 + 15 + 25+ … + 95 and 6 + 16 + 26 + … 96 = 505
Average sum of both vertical lines
41 + 42 + 43 + … + 50 and 51 + 52 + 53 + … + 60 = 505.
Thus, the magic works here as well.
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संबंधित प्रश्न
Look at the birth certificate of bincy.
2/5/2002 shows that Bincy was born on 2 ____, in the year 2002.
Look at the birth certificate of Bincy.
How many months old was Bincy on 2 August 2002?
When were you born?
Let us look at the calendar for the year 2020.
- How many weeks are there in July?
- Is it true for all the months?
Which festival comes in the beginning of the year?
Add the three numbers on each of these lines. What do you notice?
5 + 13 + 21 =
6 + 13 + 20 =
7 + 13 + 19 =
12 + 13 + 14 =
Colour all the Sundays in red.
Write the number of days in this month.
Which months in the calendar (2020) have 5 Sundays?
How many Thursdays are there in this month?
