Decomposing Numbers 5 - 10
What is Build It and Break It?
"Build and break" creates different ways to represent a number. Students "build" a specific number using snap cubes and then "break" the cubes into 2 parts. Students then record the addition sentence (a number equation and a sentence is both included -- so 2 sets for each number).
What is Shake and Spill: Decomposing Numbers?
"Shake and Spill: Decomposing Numbers creates different ways to represent a number. Students "shake" a specific number of red/yellow counters and then "spill" the counters and record how many yellow and how many red. Then they record the different combination on the recording sheet.
This activity is correlated with Common Core standard CCSS.Math.Content.K.OA.A.3
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.
These worksheet are designed to help students learn and practice the skill of decomposing numbers 5, 6, 7, 8, 9 and 10 using snap cubes or connecting cubes or red/yellow counters. You can use this activity for small group instruction, RTI, small group intervention or a math center activity.
THIS RESOURCE INCLUDES:
Build it and Break it
Set #1 -2D version of square clipart recording sheets and write a number sentence
Set #2 - 2D version of square clipart and write an equation
Set #3 - 3D version of snap cubes recording sheets and write a number sentence
Set #4 - 3D version of snap cubes recording sheets and write an equation
Shake and Spill
Set#1 - Write a number sentence
Set#2 - Write an equation (10 = 5 + 5)
Set #3 - Write an equation (5 + 5 = 10)
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