Envision Math Grade 5 Answer Key Topic 1.3 Decimal Place Value

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.
4.737
Answer:

Question 2.
9.806
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.
2.300
Answer:

Question 11.
9.027
Answer:

Question 12.
1.982
Answer:

Question 13.
6.17
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: