Addition within 20 Worksheets

Horizontal addition facts up to 20.

Use these free 1st grade addition within 20 worksheets for 10–15 minute practice sessions at home or in class. Pick one of 20 preset PDF variations or open the custom generator for a unique seed. Created by the Kibi Club curriculum team.

Free 1st grade printable PDF · More 1st Grade math worksheets

20 Ready-to-Print Variations

Select a version below. Each generates a unique 4-page PDF.

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ID: 556183
Variant 1
4 PagesOpen Worksheet
ID: 564119
Variant 2
4 PagesOpen Worksheet
ID: 572089
Variant 3
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ID: 580093
Variant 4
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ID: 588131
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ID: 596203
Variant 6
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ID: 604309
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ID: 612449
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ID: 620623
Variant 9
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ID: 628831
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ID: 637073
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ID: 645349
Variant 12
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ID: 653659
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ID: 662003
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ID: 670381
Variant 15
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ID: 678793
Variant 16
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ID: 687239
Variant 17
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ID: 695719
Variant 18
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ID: 704233
Variant 19
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ID: 712781
Variant 20
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ID: 721363
Variant 21
4 PagesOpen Worksheet
ID: 729979
Variant 22
4 PagesOpen Worksheet
ID: 738629
Variant 23
4 PagesOpen Worksheet
ID: 747313
Variant 24
4 PagesOpen Worksheet
ID: 756031
Variant 25
4 PagesOpen Worksheet

Browse more worksheets

Open the worksheet browser for 1st grade — filtered by skill type.

Addition

addition

Subtraction

subtraction

Equations & Properties

equations

Counting to 120

counting

Tens & Ones

place value

Comparing Numbers

comparing

20 Ready-to-Print Variations

Variant 1

Variant 2

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Variant 10

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