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E:\Working\Orange_Education\TouchPad_Maths_2\Open_Files\Maths_2_Chapter-02
\ 14-Nov-2025 Bharat Arora Proof-7 Reader’s Sign _______________________ Date __________
4. There are three trees in a park.
T O
a. If 22 birds are sitting on one tree and 35
birds on the second tree, how many birds +
are sitting on the two trees?
Answer: ____________________________
T O
b. If 40 birds are sitting on the third tree, how
many birds are sitting on the three trees +
together?
Answer: ____________________________
ADDITION OF BIggEr 2-DIgIT NuMBErS
Addition with regrouping Tens
Sometimes when we add two numbers, we get a 3-digit number.
Example 1. Add 60 and 50.
Solution.
Step 1. Add the ones. Step 2. Add the tens and regroup.
H T O H T O
1
6 0 6 0
+ 5 0 + 5 0
0 1 1 0
0 + 0 = 0 ones 6 + 5 = 11 tens = 1 hundred + 1 ten
So, 60 + 50 = 110.
42 42 Mathematics 2
