Our math addition worksheets cover the addition concepts which children can use to learn quickly and effectively. First, students will practice by writing numbers 1 â€“ 19. Following that they will begin addition exercises, adding 1 to all numbers up to 999. This will continue for numbers 2, 3, 4, and onward with each exercise adding increasing variety and complexity to challenge the studentsâ€™ abilities. By the end of the exercises, the students will have demonstrated the skills necessary to solve advanced addition problems including adding three numbers and adding up to five digit numbers. World problems in each unit of all 40 units help students not only add numbers, but also help them solve daily life problems.

Unit 1: Adding 1 Sum up to Twenty

A1.1 Write the Numbers that Come Next: 1 to 9

A1.2 Write the Numbers that Come Next: 10 to 19

A1.3 Addition, Focusing on 1 to 9

A1.4 Addition, Focusing on 5 to 15

A1.5 Addition, Focusing on 10 to 19

A1.6 Addition, Focusing on 1 to 19 Randomly

A1.7 Extra Word Problems

Unit 2: Adding 1 Sum up to Fifty

A2.1 Adding 1 to Numbers up to 25

A2.2 Adding 1 to Numbers up to 30

A2.3 Adding 1 to Numbers up to 35

A2.4 Adding 1 to Numbers up to 40

A2.5 Adding 1 to Numbers up to 45

A2.6 Adding 1 to Numbers up to 49

A2.7 Extra Word Problems

Unit 3: Adding 1 Sum up to Hundred

A3.1 Adding 1 to Numbers up to 59

A3.2 Adding 1 to Numbers up to 69

A3.3 Adding 1 to Numbers up to 79

A3.4 Adding 1 to Numbers up to 89

A3.5 Adding 1 to Numbers up to 99

A3.6 Adding 1 to Numbers up to 99 Randomly

A3.7 Extra Word Problems

Unit 4: Adding 1 Sum up to Thousand

A4.1 Adding 1 to Numbers up to 200

A4.2 Adding 1 to Numbers up to 300

A4.3 Adding 1 to Numbers up to 500

A4.4 Adding 1 to Numbers up to 700

A4.5 Adding 1 to Numbers up to 900

A4.6 Adding 1 to Numbers up to 999

A4.7 Extra Word Problems

Unit 5: Adding 2 Sum up to Twenty

A5.1 Adding 2 to Numbers up to 8

A5.2 Adding 2 to Numbers up to 10

A5.3 Adding 2 to Numbers up to 12

A5.4 Adding 2 to Numbers up to 15

A5.5 Adding 2 to Numbers up to 18

A5.6 Adding 2 to Numbers up to 18 Randomly

A5.7 Extra Word Problems

Unit 6: Adding 2 Sum up to Thirty

A6.1 Adding 2 to Numbers up to 20

A6.2 Adding 2 to Numbers up to 22

A6.3 Adding 2 to Numbers up to 24

A6.4 Adding 2 to Numbers up to 26

A6.5 Adding 2 to Numbers up to 28

A6.6 Adding 2 to Numbers up to 28 Randomly

A6.7 Extra Word Problems

Unit 7: Adding 2 Sum up to Fifty

A7.1 Adding 2 to Numbers up to 30

A7.2 Adding 2 to Numbers up to 35

A7.3 Adding 2 to Numbers up to 40

A7.4 Adding 2 to Numbers up to 45

A7.5 Adding 2 to Numbers up to 48

A7.6 Adding 2 to Numbers up to 48 Randomly

A7.7 Extra Word Problems

Unit 8: Adding 3 Sum up to Twenty

A8.1 Adding 3 to Numbers up to 7

A8.2 Adding 3 to Numbers up to 9

A8.3 Adding 3 to Numbers up to 11

A8.4 Adding 3 to Numbers up to 14

A8.5 Adding 3 to Numbers up to 17

A8.6 Adding 3 to Numbers up to 17 Randomly

A8.7 Extra Word Problems

Unit 9: Adding 3 Sum up to Thirty

A9.1 Adding 3 to Numbers up to 19

A9.2 Adding 3 to Numbers up to 21

A9.3 Adding 3 to Numbers up to 23

A9.4 Adding 3 to Numbers up to 25

A9.5 Adding 3 to Numbers up to 27

A9.6 Adding 3 to Numbers up to 27 Randomly

A9.7 Extra Word Problems

Unit 10: Adding 3 Sum up to Fifty

A10.1 Adding 3 to Numbers up to 30

A10.2 Adding 3 to Numbers up to 35

A10.3 Adding 3 to Numbers up to 40

A10.4 Adding 3 to Numbers up to 45

A10.5 Adding 3 to Numbers up to 47

A10.6 Adding 3 to Numbers up to 47 Randomly

A10.7 Extra Word Problems

Unit 11: Adding up to 3 Sum up to Twenty

A11.1 Adding 1 to Numbers up to 15

A11.2 Adding 1 to Numbers up to 19

A11.3 Adding 2 to Numbers up to 12

A11.4 Adding 2 to Numbers up to 18

A11.5 Adding 3 to Numbers up to 10

A11.6 Adding 3 to Numbers up to 17

A11.7 Extra Word Problems

Unit 12: Adding up to 3 Sum up to Thirty

A12.1 Adding 1 to Numbers up to 29

A12.2 Adding 2 to Numbers up to 28

A12.3 Adding 3 to Numbers up to 27

A12.4 Adding 1 or 2 to Numbers up to 28

A12.5 Adding 2 or 3 to Numbers up to 27

A12.6 Adding 1, 2, or 3 to Numbers up to 27

A12.7 Extra Word Problems

Unit 13: Adding up to 3 Sum up to Fifty

A13.1 Adding 1 to Numbers up to 49

A13.2 Adding 2 to Numbers up to 48

A13.3 Adding 3 to Numbers up to 47

A13.4 Adding 1 or 2 to Numbers up to 48

A13.5 Adding 2 or 3 to Numbers up to 47

A13.6 Adding 1, 2, or 3 to Numbers up to 47

A13.7 Extra Word Problems

Unit 14: Adding 4 Sum up Twenty

A14.1 Adding 4 to Numbers up to 7

A14.2 Adding 4 to Numbers up to 9

A14.3 Adding 4 to Numbers up to 11

A14.4 Adding 4 to Numbers up to 14

A14.5 Adding 4 to Numbers up to 16

A14.6 Adding 4 to Numbers up to 16 Randomly

A14.7 Extra Word Problems

Unit 15: Adding 4 Sum up to Fifty

A15.1 Adding 4 to Numbers up to 25

A15.2 Adding 4 to Numbers up to 30

A15.3 Adding 4 to Numbers up to 35

A15.4 Adding 4 to Numbers up to 40

A15.5 Adding 4 to Numbers up to 45

A15.6 Adding 4 to Numbers up to 46 Randomly

A15.7 Extra Word Problems

Unit 16: Adding 5 Sum up to Twenty

A16.1 Adding 5 to Numbers up to 7

A16.2 Adding 5 to Numbers up to 9

A16.3 Adding 5 to Numbers up to 11

A16.4 Adding 5 to Numbers up to 13

A16.5 Adding 5 to Numbers up to 15

A16.6 Adding 5 to Numbers up to 15 Randomly

A16.7 Extra Word Problems

Unit 17: Adding 5 Sum up to Fifty

A17.1 Adding 5 to Numbers up to 20

A17.2 Adding 5 to Numbers up to 25

A17.3 Adding 5 to Numbers up to 30

A17.4 Adding 5 to Numbers up to 35

A17.5 Adding 5 to Numbers up to 40

A17.6 Adding 5 to Numbers up to 45

A17.7 Extra Word Problems

Unit 18: Adding up to 5 Sum up to Twenty

A18.1 Adding 1, 2, or 3 to Numbers up to 17

A18.2 Adding 2, 3, or 4 to Numbers up to 16

A18.3 Adding 3, 4, or 5 to Numbers up to 15

A18.4 Adding 1, 2, 3, or 4 to Numbers up to 16

A18.5 Adding 2, 3, 4, or 5 to Numbers up to 15

A18.6 Adding 1, 2, 3, 4, or 5 to Numbers up to 15

A18.7 Extra Word Problems

Unit 19: Adding up to 5 Sum up to Fifty

A19.1 Adding 2, 3, 4, or 5 to Numbers up to 20

A19.2 Adding 2, 3, 4, or 5 to Numbers up to 25

A19.3 Adding 2, 3, 4, or 5 to Numbers up to 30

A19.4 Adding 2, 3, 4, or 5 to Numbers up to 35

A19.5 Adding 2, 3, 4, or 5 to Numbers up to 40

A19.6 Adding 2, 3, 4, or 5 to Numbers up to 45

A19.7 Extra Word Problems

Unit 20: Adding 6 Sum up to Twenty

A20.1 Adding 6 to Numbers up to 7

A20.2 Adding 6 to Numbers up to 9

A20.3 Adding 6 to Numbers up to 11

A20.4 Adding 6 to Numbers up to 13

A20.5 Adding 6 to Numbers up to 14

A20.6 Adding 6 to Numbers up to 14 Randomly

A20.7 Extra Word Problems

Unit 21:Adding 6 Sum up to Fifty

A21.1 Adding 6 to Numbers up to 20

A21.2 Adding 6 to Numbers up to 25

A21.3 Adding 6 to Numbers up to 30

A21.4 Adding 6 to Numbers up to 35

A21.5 Adding 6 to Numbers up to 40

A21.6 Adding 6 to Numbers up to 44

A21.7 Extra Word Problems

Unit 22:Adding 7 Sum up to Twenty

A22.1 Adding 7 to Numbers up to 7

A22.2 Adding 7 to Numbers up to 9

A22.3 Adding 7 to Numbers up to 11

A22.4 Adding 7 to Numbers up to 12

A22.5 Adding 7 to Numbers up to 13

A22.6 Adding 7 to Numbers up to 13 Randomly

A22.7 Extra Word Problems

Unit 23:Adding 7 Sum up to Fifty

A23.1 Adding 7 to Numbers up to 20

A23.2 Adding 7 to Numbers up to 25

A23.3 Adding 7 to Numbers up to 30

A23.4 Adding 7 to Numbers up to 35

A23.5 Adding 7 to Numbers up to 40

A23.6 Adding 7 to Numbers up to 43

A23.7 Extra Word Problems

Unit 24: Adding 8 Sum up to Thirty

A24.1 Adding 8 to Numbers up to 10

A24.2 Adding 8 to Numbers up to 14

A24.3 Adding 8 to Numbers up to 16

A24.4 Adding 8 to Numbers up to 18

A24.5 Adding 8 to Numbers up to 20

A24.6 Adding 8 to Numbers up to 22

A24.7 Extra Word Problems

Unit 25: Adding 8 Sum up to Fifty

A25.1 Adding 8 to Numbers up to 25

A25.2 Adding 8 to Numbers up to 30

A25.3 Adding 8 to Numbers up to 35

A25.4 Adding 8 to Numbers up to 40

A25.5 Adding 8 to Numbers up to 42

A25.6 Adding 8 to Numbers up to 42 Randomly

A25.7 Extra Word Problems

Unit 26: Adding 6 Sum up to Fifty

A26.1 Adding 9 to Numbers up to 10

A26.2 Adding 9 to Numbers up to 12

A26.3 Adding 9 to Numbers up to 14

A26.4 Adding 9 to Numbers up to 16

A26.5 Adding 9 to Numbers up to 18

A26.6 Adding 9 to Numbers up to 21

A26.7 Extra Word Problems

Unit 27: Adding 9 and 10 Sum up to Fifty

A27.1 Adding 9 to Numbers up to 30

A27.2 Adding 9 to Numbers up to 40

A27.3 Adding 10 to Numbers up to 30

A27.4 Adding 10 to Numbers up to 40

A27.5 Adding 9 and 10 to Numbers up to 30

A27.6 Adding 9 and 10 to Numbers up to 40

A27.7 Extra Word Problems

Unit 28: Adding 1 and 2 Digit Numbers: Sums up to Thirty

A28.1 Add Numbers Using 8 to 22

A28.2 Add Numbers Using 10 to 25

A28.3 Add Numbers Using 12 to 27

A28.4 Add Numbers Using 15 to 29

A28.5 Add Numbers Using 18 to 30

A28.6 Add Numbers Using 0 to 30

A28.7 Extra Word Problems

Unit 29: Adding 1 and 2 Digit Numbers: Sums up to Fifty

A29.1 Add Numbers Using 41 to 0

A29.2 Add Numbers Using 43 to 0

A29.3 Add Numbers Using 45 to 0

A29.4 Add Numbers Using 47 to 0

A29.5 Add Numbers Using 49 to 0

A29.6 Add Numbers Using 50 to 0

A29.7 Extra Word Problems

Unit 30: Adding 1 and 2 Digit Numbers: Sums up to Seventy

A30.1 Add Using Numbers up to 55

A30.2 Add Using Numbers up to 58

A30.3 Add Using Numbers up to 60

A30.4 Add Using Numbers up to 62

A30.5 Add Using Numbers up to 65

A30.6 Add Using Numbers up to 70

A30.7 Extra Word Problems

A31.2 Add Ones with Tens up to 30 Horizontally

A31.3 Add Ones with Tens up to 30 Vertically

A31.4 Add Ones with Tens up to 50 Horizontally

A31.5 Add Ones with Tens up to 50 Vertically

A31.6 Add Ones with Tens up to 50 Horizontally and Vertically

A31.7 Extra Word Problems

Unit 32: Adding 2 Digit Numbers without Regrouping

A32.1 Add Numbers Using 20 to 39 without Regrouping

A32.2 Add Numbers Using 30 to 49 without Regrouping

A32.3 Add Numbers Using 40 to 59 without Regrouping

A32.4 Add Numbers Using 50 to 69 without Regrouping

A32.5 Add Numbers Using 60 to 79 without Regrouping

A32.6 Add Numbers Using 70 to 89 without Regrouping

A32.7 Extra Word Problems

Unit 33: Adding 2 Digit Numbers with Regrouping

A33.1 Add Numbers Using 20 to 39 with Regrouping

A33.2 Add Numbers Using 30 to 49 with Regrouping

A33.3 Add Numbers Using 40 to 59 with Regrouping

A33.4 Add Numbers Using 50 to 69 with Regrouping

A33.5 Add Numbers Using 60 to 79 with Regrouping

A33.6 Add Numbers Using 70 to 89 with Regrouping

A33.7 Extra Word Problems

Unit 34: Adding 2 Digit Numbers when Second Number is Smaller

A34.1 Add Numbers Using 15 to 40

A34.2 Add Numbers Using 20 to 55

A34.3 Add Numbers Using 35 to 60

A34.4 Add Numbers Using 40 to 75

A34.5 Add Numbers Using 45 to 80

A34.6 Add Numbers Using 50 to 95

A34.7 Extra Word Problems

Unit 35: Adding 2 Digit Numbers when Second Number is Larger

A35.1 Add Numbers Using 15 to 40

A35.2 Add Numbers Using 20 to 55

A35.3 Add Numbers Using 35 to 60

A35.4 Add Numbers Using 40 to 75

A35.5 Add Numbers Using 45 to 80

A35.6 Add Numbers Using 50 to 95

A35.7 Extra Word Problems

Unit 36: Adding 2 Digit Numbers: Sums Beyond 100

A36.1 Add Numbers Using 20 to 99

A36.2 Add Numbers Using 30 to 98

A36.3 Add Numbers Using 40 to 97

A36.4 Add Numbers Using 50 to 96

A36.5 Add Numbers Using 60 to 95

A36.6 Add Numbers Using 70 to 94

A36.7 Extra Word Problems

A37.1 Add Hundreds with Hundreds Using 100 to 300

A37.2 Add Hundreds with Hundreds Using 300 to 500

A37.3 Add Hundreds with Hundreds Using 500 to 700

A37.4 Add Hundreds with Hundreds Using 600 to 800

A37.5 Add Hundreds with Hundreds Using 700 to 900

A37.6 Add Hundreds with Hundreds Using 100 to 900

A37.7 Extra Word Problems

Unit 38: Adding Tens with Hundreds

A38.1 Add Tens with Hundreds Using 100 to 300

A38.2 Add Tens with Hundreds Using 300 to 500

A38.3 Add Tens with Hundreds Using 500 to 700

A38.4 Add Tens with Hundreds Using 600 to 800

A38.5 Add Tens with Hundreds Using 700 to 900

A38.6 Add Tens with Hundreds Using 100 to 900

A38.7 Extra Word Problems

Unit 39: Adding Ones with Hundreds

A39.1 Add Ones with Hundreds Using 100 to 300

A39.2 Add Ones with Hundreds Using 300 to 500

A39.3 Add Ones with Hundreds Using 500 to 700

A39.4 Add Ones with Hundreds Using 600 to 800

A39.5 Add Ones with Hundreds Using 700 to 900

A39.6 Add Ones with Hundreds Using 100 to 900

A39.7 Extra Word Problems

Unit 40: More problems on Addition

A40.1 Adding 3 Numbers Part I

A40.2 Adding 3 Numbers Part II

A40.3 Adding 3 Numbers Part III

A40.4 Add 2 or 3 Digit Numbers Vertically

A40.5 Add 3 or 4 Digit Numbers Vertically

A40.6 Add 4 or 5 Digit Numbers Vertically

A40.7 Extra Word Problems