Combinations to 20: Dollar Deals Memory Game: "Turn Twenty"

Grade Levels
1st - 4th
Standards
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  • PDF
Pages
6 pages
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Description

One critical math skill for primary grades is to be able to add and subtract within 20 as students work to build math fact fluency and automaticity. This game focuses on number combinations to 20 in a fun and engaging way.

This resource is a memory game where students need to work to find number combinations that equal 20. To make it a little more “big kid” friendly, there is also a “?” card—if a student draws that one, they can name the missing number to get a match (ex. ? + 8 = 20…student says “12”). This is a great way to develop that algebraic thinking as well!

There is a recording sheet if you want your students to write down their combinations. It's great for grades 1-2 instruction or remediation/fun for grades 3-4!

There is ALSO a "Turn 10" version for students working on facts to 10!

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Looking for a bundle of this and other structuring games?

4 Structuring Game Bundle!

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Total Pages
6 pages
Answer Key
N/A
Teaching Duration
N/A
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Standards

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.
Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = ▯ - 3, 6 + 6 = ▯.
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).
Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
Apply properties of operations as strategies to add and subtract. If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)

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