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- Addition

These basic **Addition worksheets** are made up of Horizontal Addition questions, where the math questions are written left to right. The worksheets are printable and the questions on the math worksheets change each time you visit.

With our math sheet generator, you can easily create Addition worksheets that are never the same and always different, providing you with an unlimited supply of math sheets to use in the classroom or at home.

Each math sheet also has an optional **answer key** checkbox that you can select, if you wish to print an answer key to go along with your math worksheet.

Click on one of the links below to see the printable worksheet.

The following are math worksheets for addition, with questions written horizontally (ie: left to right).

- Adding by 1, 2
- Adding by 1, 2, 3
- Adding by 1, 2, 3, 4
- Adding by 1, 2, 3, 4, 5
- Adding by 1, 2, 3, 4, 5, 6
- Adding by 1, 2, 3, 4, 5, 6, 7
- Adding by 1, 2, 3, 4, 5, 6, 7, 8
- Adding by 1, 2, 3, 4, 5, 6, 7, 8, 9
- Adding by 2, 3
- Adding by 2, 3, 4
- Adding by 2, 3, 4, 5
- Adding by 2, 3, 4, 5, 6
- Adding by 2, 3, 4, 5, 6, 7
- Adding by 2, 3, 4, 5, 6, 7, 8
- Adding by 2, 3, 4, 5, 6, 7, 8, 9
- Adding by 3, 4
- Adding by 3, 4, 5
- Adding by 3, 4, 5, 6

- Adding by 3, 4, 5, 6, 7
- Adding by 3, 4, 5, 6, 7, 8
- Adding by 3, 4, 5, 6, 7, 8, 9
- Adding by 4, 5
- Adding by 4, 5, 6
- Adding by 4, 5, 6, 7
- Adding by 4, 5, 6, 7, 8
- Adding by 4, 5, 6, 7, 8, 9
- Adding by 5, 6
- Adding by 5, 6, 7
- Adding by 5, 6, 7, 8
- Adding by 5, 6, 7, 8, 9
- Adding by 6, 7
- Adding by 6, 7, 8
- Adding by 6, 7, 8, 9
- Adding by 7, 8
- Adding by 7, 8, 9
- Adding by 8, 9

- Adding Doubles (10 thru 30)
- Adding Doubles (10 thru 40)
- Adding Doubles (10 thru 50)
- Adding Doubles (10 thru 60)
- Adding Doubles (10 thru 70)
- Adding Doubles (10 thru 80)
- Adding Doubles (10 thru 90)
- Adding Doubles (10 thru 100)
- Adding Doubles (50 thru 100)
- Adding Doubles (100 thru 200)
- Adding Doubles (100 thru 999)

- Adding Doubles plus one (0 thru 5)
- Adding Doubles plus one (0 thru 10)
- Adding Doubles plus one (1 thru 5)
- Adding Doubles plus one (1 thru 10)
- Adding Doubles plus one (1 thru 12)
- Adding Doubles plus one (1 thru 24)
- Adding Doubles plus one (6 thru 10)
- Adding Doubles plus one (6 thru 12)
- Adding Doubles plus one (6 thru 24)
- Adding Doubles plus one (13 thru 24)
- Adding Doubles plus one (10 thru 20)

- Adding Doubles plus one (10 thru 30)
- Adding Doubles plus one (10 thru 40)
- Adding Doubles plus one (10 thru 50)
- Adding Doubles plus one (10 thru 60)
- Adding Doubles plus one (10 thru 70)
- Adding Doubles plus one (10 thru 80)
- Adding Doubles plus one (10 thru 90)
- Adding Doubles plus one (10 thru 100)
- Adding Doubles plus one (50 thru 100)
- Adding Doubles plus one (100 thru 200)
- Adding Doubles plus one (100 thru 999)

- Adding two-digit number (up to 20) with one-digit number
- Adding two-digit number (up to 30) with one-digit number
- Adding two-digit number (up to 40) with one-digit number
- Adding two-digit number (up to 50) with one-digit number
- Adding two-digit number (up to 60) with one-digit number
- Adding two-digit number (up to 70) with one-digit number
- Adding two-digit number (up to 80) with one-digit number
- Adding two-digit number (up to 90) with one-digit number

- Adding three-digit numbers (100 thru 200)
- Adding three-digit numbers (100 thru 300)
- Adding three-digit numbers (100 thru 400)
- Adding three-digit numbers (100 thru 500)
- Adding three-digit numbers (100 thru 600)
- Adding three-digit numbers (100 thru 700)
- Adding three-digit numbers (100 thru 800)
- Adding three-digit numbers (100 thru 900)
- Adding three-digit numbers (100 thru 999)
- Adding three-digit numbers (500 thru 999)
- Adding three-digit numbers, sum not exceeding 999
- Adding three-digit numbers, sum not exceeding 1,998

- Missing Addends (0 thru 5)
- Missing Addends (0 thru 6)
- Missing Addends (0 thru 7)
- Missing Addends (0 thru 8)
- Missing Addends (0 thru 9)
- Missing Addends (0 thru 10)
- Missing Addends (5 thru 10)
- Missing Addends (5 thru 15)
- Missing Addends (10 thru 20)
- Missing Addends (10 thru 30)
- Missing Addends (10 thru 40)
- Missing Addends (10 thru 50)
- Missing Addends (10 thru 60)
- Missing Addends (10 thru 70)
- Missing Addends (10 thru 80)
- Missing Addends (10 thru 90)

Missing Addends Example

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