Page 48 - MathGenius-C1-Flipbook

E:\Working\Orange_Education\Math_Genius_1\Open_Files\Chap_3
\ 03-Oct-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

Practice time 3e

Add the following vertically. One has been done for you.

1. 7 2. 5 3. 7 4. 6 5. 5

+ 1 + 4 + 2 + 1 + 3

8

6. 5 7. 6 8. 8 9. 4 10. 8

+ 7 + 4 + 2 + 9 + 7

Addition oF three numberS

To add three numbers, first add any two of the numbers. Then, add the third number
to the sum of the two numbers.

Let us add 4, 3 and 2. first, add 4 and 3 and then add 2 to the sum of 4 and 3.

4
3 7
+ 2 + 2
4 + 3 + 2 9

7 + 2 = 9

3 + 4 + 2 = ?

3
4 3
+ 2 + 6
3 + 4 + 2 9

3 + 6 = 9

maths fun
Experiential Learning
Take a dice. Roll it three times. Note down all the three

numbers you get. Add them and write the sum.

46 Mathematics-1