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# 1.OA.D.8 Games

#### CCSS.MATH.CONTENT.1.OA.D.8

:
"Determine the unknown whole number in an addition or subtraction equation relating three whole numbers."

These games can help students practice this Common Core State Standards skill.

## Games

What's Missing? Subtraction Song
Song
What's Missing? Subtraction Song
Kids figure out how many are missing with this catchy subtraction song.
Math
Song
Subtraction Pizza Party
Game
Subtraction Pizza Party
Mama mia! Kids must use subtraction skills to craft perfect pizzas in this game.
Math
Game
Match: Addition within 20 and Missing Factors
Game
Match: Addition within 20 and Missing Factors
Kids practice matching each addition equation to its missing factor in this interactive math game.
Math
Game
Match: Addition Within 10 and Missing Factors
Game
Match: Addition Within 10 and Missing Factors
Kids hone their single-digit addition skills as they match equations with their missing factors.
Math
Game
Match: Addition Within 20 and Missing Factors 2
Game
Match: Addition Within 20 and Missing Factors 2
Fill in these addition facts! This game challenges kids to match missing factors to each equation.
Math
Game
Match: Subtraction Within 10 and Missing Factors
Game
Match: Subtraction Within 10 and Missing Factors
In this matching game, first graders look at subtraction facts that are missing factors.
Math
Game
Match: Subtraction Within 20 and Missing Factors
Game
Match: Subtraction Within 20 and Missing Factors
Think on your feet and find the missing numbers in these subtraction equations.
Math
Game

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