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Add and Subtract within 20 Worksheet Freebie

Rated 4.69 out of 5, based on 340 reviews
4.7 (340 ratings)
194,593 Downloads
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Language Counts
1.2k Followers
Grade Levels
1st - 2nd
Resource Type
Standards
Formats Included
  • PDF
Pages
3 pages
Language Counts
1.2k Followers

Description

Sometimes you just need a quick addition or subtraction worksheet. Three free problem sets to practice or assess basic addition and/or subtraction within 20. Each page includes 27 problems and covers either addition to 20, subtraction within 20, or a mix of both. Perfect for 1st grade or a review for 2nd grade.

Answer key is included.

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Total Pages
3 pages
Answer Key
Included
Teaching Duration
N/A
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Standards

to see state-specific standards (only available in the US).
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.

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