MathsFreePrintable
Mental Addition of 9
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Mental Addition of 9
🧮 Part 1: Quick Mental Addition
Tip: When adding 9, try adding 10 then subtracting 1!
1. 7 + 9 = _____
2. 15 + 9 = _____
3. 23 + 9 = _____
4. 8 + 9 = _____
5. 34 + 9 = _____
6. 6 + 9 = _____
📝 Part 2: Word Problems
7. Sarah has 18 stickers in her collection. Her friend gives her 9 more stickers. How many stickers does Sarah have now?
8. At the school fair, Tom scored 27 points in a game. In his next turn, he scored 9 more points. What is his total score?
9. A library had 45 books on display. The librarian added 9 more books to the display. How many books are on display now?
10. Emma walked 9 kilometres on Saturday. On Sunday, she walked another 9 kilometres. How far did she walk altogether over the weekend?
🎯 Part 3: Challenge Questions
11. Fill in the missing number: 29 + _____ = 38
12. Which strategy do you find most helpful when adding 9 to a number? Explain your thinking.
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