Lesson 8 Numbers With Tens and Ones

    • Let’s learn more about tens and ones.

Warm-up Notice and Wonder: One-and Two-digit Numbers

Set A

0

1

2

3

4

5

6

7

8

9

Set B

10

23

45

76

89

Activity 1 Make It: Tens and Ones

  • Partner 1 draws 2 number cards and uses them to make a two-digit number.

  • Each partner says the number.

  • Partner 2 builds the number using cubes.

  • Partner 1 checks to see if they agree.

  • Each partner makes a drawing of the number and records how many tens and ones.

  • Switch roles and repeat.

Activity 2 Who Do You Agree With?

Base ten diagram. 6 ones. 8 tens.

Clare says this shows 68 (sixty-eight).
Diego says this shows 86 (eighty-six).
Who do you agree with?
How do you know they are correct?

I agree with because .

Activity 3 Centers: Choice Time

Choose a center.

Shake and Spill

Center activity. Shake and Spill.

How Close

Center. How Close.

Check it Off

Center. Check It Off.

Practice Problem

Problem 1

  1. How many connecting cubes are there?
    Show your thinking using drawings, numbers, or words.

    Connecting cubes. 4 towers of 10 cubes. 8 single cubes.

  2. How many connecting cubes are there?
    Show your thinking using drawings, numbers, or words.

    Connecting cubes. 5 towers of 10 cubes. 8 single cubes.

  3. How are the numbers the same? How are they different?