Kindergarten Mathematics Module 5, Topic E, Lesson 21

girl at computer

Objective: Represent teen number decompositions as 10 ones and some ones, and find a hidden part.

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Common Core Learning Standards

CCLS State Standard
K.NBT.1 Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using...
1.OA.8 Determine the unknown whole number in an addition or subtraction equation relating three whole...

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