Siti has 47 stickers. She buys 25 more stickers. How many stickers does she have altogether?
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Worked Solution
Step 1: Add the ones digits.
7 + 5 = 12. Write 2 in the ones place and carry 1 to the tens.
Step 2: Add the tens digits including the carry.
4 + 2 + 1 (carried) = 7. Write 7 in the tens place.
Answer: 47 + 25 = 72 stickers.
Correct answer: 72
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