1.OA.C.6, 2.OA.B.2: Subtract within 20 (50 worksheets)

1.OA.C.6, 2.OA.B.2: Subtract within 20 (50 worksheets)
1.OA.C.6, 2.OA.B.2: Subtract within 20 (50 worksheets)
1.OA.C.6, 2.OA.B.2: Subtract within 20 (50 worksheets)
1.OA.C.6, 2.OA.B.2: Subtract within 20 (50 worksheets)
1.OA.C.6, 2.OA.B.2: Subtract within 20 (50 worksheets)
1.OA.C.6, 2.OA.B.2: Subtract within 20 (50 worksheets)
1.OA.C.6, 2.OA.B.2: Subtract within 20 (50 worksheets)
1.OA.C.6, 2.OA.B.2: Subtract within 20 (50 worksheets)
Subject
Grade Levels
Resource Type
File Type

PDF

(195 KB)
Product Rating
Standards
  • Product Description
  • StandardsNEW
  • Subtraction problems with differences between 1 and 20.
  • Contains problems in mixed horizontal and vertical orientations.
  • Comprises 50 math worksheets, each with a corresponding answer page.
  • CCSS: 1.OA.C.6, 2.OA.B.2.
Log in to see state-specific standards (only available in the US).
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
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).
Total Pages
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Answer Key
Included
Teaching Duration
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