Section B: Practice Problems 10 Ones and Some More

Section Summary

Details

We saw and made numbers 11–19 with fingers and 10-frames.

Fingers showing 4.
Ten frame full. 4 counters below.

We saw these numbers written as 10 and some more in different ways.

10 and 4 is 14.

 is 14.

Problem 1 (Lesson 5)

Draw a line from each picture to the number that shows how many there are.

  1. Fingers showing 10.
    Fingers showing 4.
  2. Fingers showing 10.
    Fingers showing 6.
  3. Ten frame, full. Below, 8 counters.
  4. Ten frame, full. Below, 3 counters.

  1. 13

  2. 14

  3. 16

  4. 18

Problem 2 (Lesson 6)

Fingers showing 10.
Fingers showing 3.

How many fingers are there?
Show how many fingers there are using a 10-frame.

Problem 3 (Lesson 7)

Write a number to show how many dots there are.

  1. Ten frame, full. Below, 4 counters.
  2. Ten frame, full. Below, 7 counters.

Problem 4 (Lesson 8)

Draw more dots to show each number.

  1. 11

    Ten frame, full.

  2. 19

    Ten frame, full.

  3. 15

    Ten frame, full.

Problem 5 (Lesson 9)

Choose an expression that matches the dots.

Ten frame, full. Below, 7 counters.

Explain how the expression matches the dots.

Problem 6 (Lesson 10)

Fill in the blanks to make each equation true.

Problem 7 (Exploration)

What are some different ways you know how to show 16?
What is your favorite way to show 16?
Share with a partner.

Problem 8 (Exploration)

  1. Arrange 18 dots in a way that helps you see there are 18.

  2. Arrange 18 dots in a way that makes it hard to see how many there are.

  3. Explain why you chose your arrangements.

  4. Try again with other numbers up to 19.