Adding 9 and 8 worksheet

Part A: Working out and filling in

1. 1. 6 + 8 = 14

   Adding 8 is adding 10 and taking 2 back: 6 + 10 = 16, 16 − 2 = 14

2. 2. 4 + 8 = 12

   Adding 8 is adding 10 and taking 2 back: 4 + 10 = 14, 14 − 2 = 12

3. 3. 2 + 8 = 10

   Adding 8 is adding 10 and taking 2 back: 2 + 10 = 12, 12 − 2 = 10

4. 4. 7 + 8 = 15

   Adding 8 is adding 10 and taking 2 back: 7 + 10 = 17, 17 − 2 = 15

5. 5. 2 + 9 = 11

   Adding 9 is adding 10 and taking 1 back: 2 + 10 = 12, 12 − 1 = 11

6. 6. 3 + 9 = 12

   Adding 9 is adding 10 and taking 1 back: 3 + 10 = 13, 13 − 1 = 12

7. 7. 3 + 8 = 11

   Adding 8 is adding 10 and taking 2 back: 3 + 10 = 13, 13 − 2 = 11

8. 8. 6 + 9 = 15

   Adding 9 is adding 10 and taking 1 back: 6 + 10 = 16, 16 − 1 = 15

9. 9. 4 + 9 = 13

   Adding 9 is adding 10 and taking 1 back: 4 + 10 = 14, 14 − 1 = 13

10. 10. 8 + 9 = 17

    Adding 9 is adding 10 and taking 1 back: 8 + 10 = 18, 18 − 1 = 17

11. 11. 5 + 8 = 13

    Adding 8 is adding 10 and taking 2 back: 5 + 10 = 15, 15 − 2 = 13

12. 12. 5 + 9 = 14

    Adding 9 is adding 10 and taking 1 back: 5 + 10 = 15, 15 − 1 = 14

Part B: Word problems

Marking: 2 for the working, 1 for the answer, 1 for the sentence.

1. 13. There are 4 passengers on a bus. At a stop, 8 passengers get on and nobody gets off. How many passengers are on the bus now? (Answer: 12 passengers)

   4 + 8 = 12

2. 14. Chi-keung has 2 storybooks, 8 fewer than Tsz-ching. How many storybooks does Tsz-ching have? (Answer: 10 storybooks)

   2 + 8 = 10

3. 15. Tsz-ching had some stickers. After giving 9 to a classmate, she had 3 left. How many stickers did she have at first? (Answer: 12 stickers)

   3 + 9 = 12

4. 16. Chi-keung had some stickers. After giving 9 to a classmate, he had 4 left. How many stickers did he have at first? (Answer: 13 stickers)

   4 + 9 = 13

5. 17. May has saved $2. Mum gives her $9 more. How many dollars does she have now? (Answer: 11 dollars)

   2 + 9 = 11

6. 18. There are 3 passengers on a bus. At a stop, 8 passengers get on and nobody gets off. How many passengers are on the bus now? (Answer: 11 passengers)

   3 + 8 = 11