Lesson 12 How Many Are Missing?

    • Let’s fill 10-frames in different ways.

Warm-up Which One Doesn’t Belong: 10-frames

Which one doesn’t belong?

  1. Ten frame. 4 red counters. 4 yellow counters.
  2. Ten frame. Full. Yellow counters.
  3. Ten frame. Full with 7 red counters, 3 yellow counters.
  4. 2 Five frames, full. First 5 frame, 4 red counters 1 yellow counter. 2nd 5 frame, 5 yellow counters.

Activity 1 Shake, Spill, and Arrange with 10

Blank ten frame.

Activity 2 How Many to Fill the 10-frame?

  • Figure out how many counters are needed to fill each 10-frame. Write a number to show how many counters are needed to fill it.

  • Circle the equation that shows the number of counters in the 10-frame and the number of counters needed to fill the 10-frame.

Problem 1

  1. Ten frame. 7 counters.

Problem 2

  1. Ten frames. 4 counters.

Problem 3

  1. Ten frame. 9 counters.

Problem 4

  1. Ten frame. 3 counters.

Problem 5

  1. Ten frame, 5 red counters.

Problem 6

  1. Ten frame, 2 counters.

Activity 3 Centers: Choice Time

Choose a center.

Shake and Spill

Center. Shake and Spill.

Counting Collections

Center. Counting Collections.

Roll and Add

Center activity. Roll and Add.

Practice Problems

Problem 1

Draw a line from each 10-frame to the equation it matches.

  1. Ten frame. Full with 5 red counters, 5 yellow counters.
  2. Ten frame. Full with 7 red counters, 3 yellow counters.
  3. Ten frame. Full with 8 red counters, 2 yellow counters.
  4. Ten frame. Full with red counters.

Problem 2

Write a number to show how many counters are needed to fill the 10-frame.

  1. Ten frame, 5 counters.
  2. Ten frame, 9 counters.
  3. Ten frame, 2 counters.