Unit 3, Lesson 8
Ten as a Unit
Grade 1
Warm-up
Which 3 go together?
Activity 2
Clare shows a number like this.
Choose 4 numbers to represent.
Circle them.
10
11
12
13
14
15
16
17
18
19
Use connecting cubes to show each number like Clare did.
What did you notice as you were showing each number?