In this lesson, we will learn how to subtract a multiple of ten from a multiple of ten and model this with place value equipment.
Students will be able to
Q1:
Six 10s take away two 10s is .
Q2:
Mason is using ten frames to skip count backward by 10.
Mason says, “Seven 10s subtract five 10s equals three tens.”
Is he correct?
What mistake did he make?
Q3:
Find the number that when subtracted from 80 gives 10.
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