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Lesson: Adding Tens to Tens

In this lesson, we will learn how to add two tens numbers with or without using base ten blocks.

Worksheet: Adding Tens to Tens • 10 Questions

Q1:

Rachel has 20 beads. She wants to add on 10 more. How many will she have altogether?

Q2:

Which of the following numbers add up to 50?

A10, 40
B60, 10
C0, 40
D50, 10
E20, 40

Q3:

Which of the following numbers add up to 80?

A60, 20
B40, 60
C50, 20
D30, 60
E70, 20

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