## Envision Math 5th Grade Textbook Answer Key Topic 1 Reteaching

Reteaching

Set A, pages 4-5

Write the word form and tell the value of the underlined digit for 930,365.

Nine hundred thirty thousand, three hundred sixty-five.

Since the 0 is in the thousands place, its value is 0 thousands or 0.

Write the word form and tell the value of the underlined digit for 65,467,386,941.

Sixty-five billion, four hundred sixty-seven million, three hundred eighty-six thousand, nine hundred forty-one

Since the 6 is in the ten billions place, its value is 60,000,000,000.

Remember that, starting from the right, each group of three digits forms a period. Periods are separated by commas.

Write the word form and tell the value of the underlined digit.

Question 1.
9,000,009
Answer:

Question 2.
300,000,000,000
Answer:

Question 3.
25,678
Answer:

Question 4.
17,874,000,000
Answer:

Question 5.
4,000,345,000
Answer:

Question 6.
105,389
Answer:

Question 7.
876,400,000,00
Answer:

Question 8.
600,309,470
Answer:

Question 9.
135,000
Answer:

Question 10.
2,647,000
Answer:

Question 11.
4,104,327,894
Answer:

Set B, pages 6-8

Write <, >, or = for  in
2,876,547  2,826,547.
Line up the numbers above one another.
2,876,547 Begin at the left and compare.
2,826,547 Notice that the ten thousands are different.

7 ten thousands > 2 ten thousands
So, 2,876,547 > 2,826,547

Remember that lining up place values helps you compare numbers.

Question 1.
9,990  9,099
Answer:

Question 2.
89,128  90,000

Question 3.
1,000,000  999,999

Question 4.
300,300  303,000
Answer:

Question 5.
6,752,100  6,752,000
Answer:

Question 6.
9,314  9,314
Answer:

Question 7.
17,320  17,212
Answer:

Question 8.
45,006  45,060
Answer:

Question 9.
22,009  22,090
Answer:

Question 10.
145,372  147,372
Answer:

Question 11.
8,374  8,374
Answer:

Set C, pages 10-11

write the word form and tell the value of the underlined digit for the number 8.726. Write the numbers on a place value chart.

Eight and seven hundred twenty-six thousandths
The 2 is in the hundredths place. Its value is 0.02

Remember to write the word and for the decimal point.

Question 1.
8.59
Answer:

Question 2.
2.251
Answer:

Question 3.
7.003

Question 4.
3.24
Answer:

Question 5.
6.837
Answer:

Question 6.
0.636
Answer:

Set D, pages 12-13

Write <, >, or = for  in
8.45  8.47.

Line up the numbers above each other by the decimals.
8.45
8.47
5 hundredths < 7 hundredths
So, 8.45 < 8.47

Remember that equivalent decimals, such as 0.45 and 0.450, can help you compare numbers.

Question 1.
0.584  0.58
Answer:

Question 2.
9.327  9.236
Answer:

Question 3.
5.2  5.20
Answer:

Question 4.
5.643  5.675
Answer:

Question 5.
0.07  0.08
Answer:

Question 6.
3.602  3.062
Answer:

Set E, pages 14-16

The table below shows the number of new members each month for a club. If the pattern continues, how many new members will there be in June?

Pattern: The number doubles each month.
May: 120 × 2 × 240
June: 240 × 2 × 480
In June, there will be 480 new members

Remember to look for a pattern.

Question 1.
On the board, Andrea’s teacher wrote the pattern below. Find the next three numbers in the pattern.

Question 2.
Sean bought a rare stamp for $15. He was told that it would increase in value by$11 each year. What will the stamp’s value be after 4 years?
Answer: