Page 106 - MathGenius-C1-Flipbook

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\ 04-Oct-2025 Bharat arora Proof-9 Reader’s Sign _______________________ Date __________

Adding A 2-digit And A 1-digit numbers

example 1: Sumona has 24 hair clips. She got 5 more. How many hair clips does
Sumona have now?

Solution: To know the total number of hair clips, we need to add 24 and 5.

Step 1. Add the ones first. Step 2. Add the tens next.

Tens Ones Tens Ones

2 4 2 4

+ 5 + 5

9 + 2 9

Thus, Sumona has 29 hair clips now.

example 2: Add 50 and 4. Knowledge Desk Creative Thinking
Solution: eleven plus Two is an

Step 1. Add the ones. Step 2. Add the tens. anagram of Twelve eleveN
PluS
Tens Ones Tens Ones plus One which is TwO
pretty fitting as the =
5 0 5 0 Twelve
answer to both is 13.
+ 4 + 4 Also, there are 13 PluS
ONe

4 5 4 letters in both eleven

Thus, 50 + 4 = 54. plus two and twelve
plus one.

Get it right!

add 35 and 3.

Tens Ones Tens Ones

3 5 3 5

+ 3 + 3

6 5  3 8 3

Fast Check Creative Thinking
Is the sum of two 1-digit numbers always a 1-digit number?

104 Mathematics-1