Grades K8 Worksheets
Looking for highquality Math worksheets aligned to Common Core standards for Grades K8?
Our premium worksheet bundles contain 10 activities and answer key to challenge your students and help them understand each and every topic within their grade level.
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Note: If students cannot readily break up or build numbers (e.g. see 5 as being 2 + 3) then they may struggle when using adding and subtracting strategies (e.g. viewing 8 + 5 as 8 + 2 + 3 = 10 + 3 = 13).  
The number 5 can be made using two other numbers. Draw blobs (or any shapes you like) to show how these two numbers make up 5. The first one is done for you.

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Related Resources
The various resources listed below are aligned to the same standard, (KOA03) taken from the CCSM (Common Core Standards For Mathematics) as the Addition and subtraction Worksheet shown above.
Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1).
Chart
Cards
 Numbers  In frames, on lines, with bonds (A4sized, 3 to 10)
Example/Guidance
Worksheet
Fact Families
 Fact Families for 4 & for 5 e.g. 2 + 3 = 5, 3 + 2 = 5, 5  2 = 3, 5  3 = 2
 Fact Families for 6
 Fact Families for 7
 Fact Families for 8
 Fact Families for 9
Number bonds to 10
 Number Bonds (Numbers to 10)  13 Pages
 Number bonds for 3 & 4
 Number bonds for 6
 Number bonds for 7
 Number bonds for 8
 Number bonds for 9
 Number bonds for 4 & 5 : Stacked to color
 Number bonds for 6, 7, & 8 : Stacked to color
 Number bonds for 9 & 10 : Stacked to color
Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:
Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from
 Foundation Activities (From Example/Guidance)
 Ten Frames (17page document) (From Chart)
 Magnets to Make 10 e.g. 4 + __ = 10 (From Game)
 Targeting What Makes 10 e.g. __ + 3 = 10 (From Game)
 Adding & Subtracting Within 5 (e.g. 2 + 3 =5, 4  1= 3) (From Game)
 Adding & Subtracting Within 5 (e.g. 2 + 3 =5, 4  1= 3) (From Game)
 Number Partitions Game (timed or not) (From Game)
 Adding To 10 (From Quiz)