## Envision Math 5th Grade Textbook Answer Key Topic 1.3 Decimal Place Value

How can you represent decimals?

Jessie bought 2.568 pounds of horned melon. What are some different ways to show 2.568?

Another Example

What are equivalent decimals?

Equivalent decimals __name the same amount__. Name two other decimals equivalent to 1.4.

One and four tenths have 1 and 40 hundredths.

So 1.4 = 1.40.

One and four tenths have 1 and 400 thousandths.

So 1.4 = 1.400.

So 1.4 = 1.40 = 1.400.

**Guided Practice***

Write the word form for each number and tell the value of the underlined digit.

Question 1.

4.7__3__7

Answer:

Question 2.

9.80__6__

Answer:

Write each number in standard form.

Question 3.

6 + 0.6 + 0.03 + 0.007

Answer:

Question 4.

four and sixty-eight hundredths

Answer:

Write two decimals that are equivalent to the given decimal.

Question 5.

3.700

Answer:

Question 6.

5.60

Answer:

Do you understand?

Question 7.

Wrting to Explain The number 3.453 has two 3s. Why does each 3 have a different value?

Answer:

Question 8.

How do you read the decimal point in word form?

Answer:

Question 9.

José finished a race in 2.6 hours and Pavel finished the same race in 2.60 hours. Which runner finished the race first? Do you know HOW?

Answer:

**Independent Practice**

Question 10.

2.__3__00

Answer:

Question 11.

9.__0__27

Answer:

Question 12.

1.9__8__2

Answer:

Question 13.

6.__1__7

Answer:

Write each number in standard form.

Question 14.

two and six hundred thousandths

Answer:

Question 15.

five and one hundred four thousandths

Answer:

Question 16.

3 + 0.3 + 0.009

Answer:

Question 17.

9 + 0.2 + 0.04

Answer:

Question 18.

7 + 0.6 + 0.05 + 0.007

Answer:

Write two decimals that are equivalent to the given decimal.

Question 19.

2.200

Answer:

Question 20.

8.1

Answer:

Question 21.

9.50

Answer:

**Problem Solving**

Question 22.

Writing to Explain Kay is buying juice at the market. She has $9 and each bottle of juice costs $2. Does she have enough money to buy 5 bottles of juice? Explain.

Answer:

Question 23.

Which point on the number line below best represents 0.368?

Answer:

Question 24.

The Borneo stick insect has a total length including legs, of 21.5 inches. Write 21.5 in word form.

Answer:

Question 25.

Worker leafcutter ants can measure 0.5 inches. Name two decimals that are equivalent to 0.5.

Answer:

Question 26.

Writing to Explain Why are 7.63 and 7.630 equivalent?

Answer: