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## Missing Subtrahend

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# Missing Subtrahend

Improve your students’ math facts while also learning a new vocabulary word! A subtrahend is a number that is taken away from another number in a subtraction equation. This magical missing number game helps kids practice their math skills by solving equations, which also builds algebraic thinking. Adding and subtracting integers won’t be so tricky after solving these math equations.

### Common Core

Grade 1 » Operations & Algebraic Thinking

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

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 = _.