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Addition and Subtraction Mappings to 20 - #1

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Do the operation shown to the four numbers in each of the boxes below . The first one is done for you.
  add 6  
3 arrowing pointing right 9
6 arrowing pointing right 12
8 arrowing pointing right 14
7 arrowing pointing right 13
  add 3  
6 arrowing pointing right 9
8 arrowing pointing right 11
10 arrowing pointing right 13
14 arrowing pointing right 17
  subtract 3  
16 arrowing pointing right 13
13 arrowing pointing right 10
11 arrowing pointing right 8
9 arrowing pointing right 6
  subtract 4  
17 arrowing pointing right 13
11 arrowing pointing right 7
13 arrowing pointing right 9
15 arrowing pointing right 11
  add 15  
1 arrowing pointing right 16
2 arrowing pointing right 17
4 arrowing pointing right 19
5 arrowing pointing right 20
  subtract 11  
20 arrowing pointing right 9
17 arrowing pointing right 6
15 arrowing pointing right 4
13 arrowing pointing right 2

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An Addition and Subtraction Worksheet - By HelpingWithMath.com

Related Resources

The various resources listed below are aligned to the same standard, (1OA06) taken from the CCSM (Common Core Standards For Mathematics) as the Addition and subtraction Worksheet shown above.

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).

Charts

Examples/ Guidance

Flashcards

Methods to learn addition and subtraction

Games

Build The Answer Games
Target Game

Quizzes

Worksheets

Addition and Subtraction Facts

 

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