Class 1 Maths Worksheet: Addition

Maths worksheets lesson 3: Addition up to 20 · Set 65 · 40 sums

The method (Count on): Start with the bigger number. Count on the smaller number, one finger at a time. For a missing number (8 + ? = 15), count on from 8 up to 15, or take away: 15 − 8.

1. 1.2 + 7 + 7 =
2. 2.11 + ? = 18
3. 3.There are 4 blue beads and 11 yellow beads. How many beads are there in all?
4. 4.13 + ? = 19
5. 5.? + 3 = 6
6. 6.2 + 4 + 9 =
7. 7.? + 9 = 18
8. 8.? + 1 = 12
9. 9.5 + ? = 8
10. 10.There are 12 green crayons and 6 blue crayons. How many crayons are there in all?
11. 11.4 + 11 =
12. 12.There are 9 blue crayons and 4 pink crayons. How many crayons are there in all?
13. 13.17 + 3 =
14. 14.Gurpreet has 7 balloons and gets 1 balloon more. How many balloons does Gurpreet have now?
15. 15.? + 1 = 17
16. 16.There are 5 pink balloons and 6 red balloons. How many balloons are there in all?
17. 17.18 + 1 =
18. 18.13 + 1 =
19. 19.8 + ? = 19
20. 20.3 + 8 + 6 =
21. 21.11 + 1 =
22. 22.9 + ? = 18
23. 23.2 + 8 =
24. 24.2 + 7 + 5 =
25. 25.Gurpreet has 6 marbles and gets 11 marbles more. How many marbles does Gurpreet have now?
26. 26.3 + 1 + 5 =
27. 27.1 + 8 + 1 =
28. 28.3 + ? = 5
29. 29.There are 3 red crayons and 14 green crayons. How many crayons are there in all?
30. 30.15 + 2 =
31. 31.9 + 5 =
32. 32.There are 4 pink balloons and 9 red balloons. How many balloons are there in all?
33. 33.8 + 4 + 3 =
34. 34.? + 4 = 15
35. 35.There are 5 green crayons and 13 red crayons. How many crayons are there in all?
36. 36.2 + 16 =
37. 37.There are 9 blue kites and 6 white kites. How many kites are there in all?
38. 38.? + 3 = 14
39. 39.4 + 2 =
40. 40.2 + 13 =

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets