2nd Grade Mathematics worksheets - Edform - Free Printable

Let’s solve each addition problem step by step. We’ll add the numbers column by column, starting from the right (ones place), then move to the left (tens place). If the sum in any column is 10 or more, we carry over to the next column.

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1) 85 + 65 + 72

- Ones: 5 + 5 + 2 = 12 → write down 2, carry 1
- Tens: 8 + 6 + 7 = 21, plus carried 1 = 22 → write down 22
→ 222

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2) 42 + 66 + 70

- Ones: 2 + 6 + 0 = 8
- Tens: 4 + 6 + 7 = 17
→ 178

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3) 33 + 46 + 71

- Ones: 3 + 6 + 1 = 10 → write down 0, carry