#3 What's missing? ADDITION Sums 11-20

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by My Little Penguins

Price: 150 points or $1.5 USD

Subjects: math

Grades: 13,1,2

Description: Included you will find 25 Boom flash cards for finding the missing number when adding. Includes random facts with sums to 20 in the Drag and Drop format with 3 answer options (see preview to view). Check out my store for the other Green What's missing Addition 11-20! In addition, check out the addition bundle containing 600 cards. 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 = _.