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

Question 2.
300,000,000,000

Question 3.
25,678

Question 4.
17,874,000,000

Question 5.
4,000,345,000

Question 6.
105,389

Question 7.
876,400,000,00

Question 8.
600,309,470

Question 9.
135,000

Question 10.
2,647,000

Question 11.
4,104,327,894

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

Question 2.
89,128  90,000

Question 3.
1,000,000  999,999

Question 4.
300,300  303,000

Question 5.
6,752,100  6,752,000

Question 6.
9,314  9,314

Question 7.
17,320  17,212

Question 8.
45,006  45,060

Question 9.
22,009  22,090

Question 10.
145,372  147,372

Question 11.
8,374  8,374

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

Question 2.
2.251

Question 3.
7.003

Question 4.
3.24

Question 5.
6.837

Question 6.
0.636

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

Question 2.
9.327  9.236

Question 3.
5.2  5.20

Question 4.
5.643  5.675

Question 5.
0.07  0.08

Question 6.
3.602  3.062

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?