Grade 5-Unit 5-Lesson 03 (1)

Different Ways to Express a Decimal

Which One Doesn’t Belong?

Which one doesn't belong?

1. 26 ÷ 100
2. 0.26
3. 26 ✕ 0.001
4. (2 ✕ 0.1) + (6 ✕ 0.01)

There is no right or wrong answer, but be ready to explain your reasoning about why you think it does not belong.

Expanded Form

You may have noticed that one of the answers, (2 ✕ 0.1) + (6 ✕ 0.01), is written in expanded form.

Different Ways to Represent Decimals

Expanded Form

1. Look at the shaded area of this hundredths grid. What do you notice?
2. Explain or show why the shaded region represents (4 ✕ 0.1) + (1 ✕ 0.01) + (9 ✕ 0.001).

What decimal represents the shaded region?

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Expanded Form

Shade the grid to represent (8 ✕ 0.1) + (3 ✕ 0.01) + (5 ✕ 0.001).

Write the number (8 ✕ 0.1) + (3 ✕ 0.01) + (5 ✕ 0.001) in decimal form.

Expanded Form

(1 x 0.1) + (1 x 0.01) + (5 x 0.001)

Expanded Form

In green, shade the part of the diagram that shows 8 ✕ 0.1In red, shade the part of the diagram that shows 3 ✕ 0.01 In yellow, (try to) shade the part of the diagram that shows 5 ✕ 0.001 What does the 5 in 0.105 represent?

You Try It!

This is page 69 from your Math Activity Book. You may choose how you would like to complete it: 1. You may complete the page in your Math Activity Book, then show it to Miss Weise when you are finished OR 2. You may complete the activity here in the Classkick.

You Try It!

Ways to Represent Decimals

What are two ways to represent the shaded part of the diagram?

BONUS POINTS!

The diagram shows a number.

• Write the number as a decimal.

• Write the number as a fraction.

• Write the number in expanded form.

• Write the number in word form.

You will receive a bonus point for each one you try. If you try ALL FOUR, you will receive FIVE bonus points!!

Follow-Up Work

Follow-Up Work: Complete the Practice and Skill Builder questions in the Edio lesson. Then you may submit the lesson!