Lesson: Subtracting Ones from Teen Numbers: Making Ten Elementary School • Mathematics • 2nd Grade • Elementary School Mathematics 1st Grade

Mathematics

In this lesson, we will learn how to subtract a one-digit number from a teen number when we cross a ten by subtracting the ones in two steps.

Video

10:07

Q1:

We can make 10 to help us subtract.

Pick the calculation that matches .

Fill in the blank: .

Q2:

Which subtraction sentence is equal to ?

Q3:

Sophia is subtracting by making 10.

Which calculation should she do first?

Which calculation should she do next?

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