Understand Thousands
Read and Write Decimals to Thousandths
Round Decimals
Round Decimals
100
What number is one-tenth of 0.1?
0.01
100
What is the following number in standard form?
two hundred forty and five hundred sixteen thousandths
240.516
100
Round 0.748 to the nearest tenth
0.7
100
Round to the placed named.
1.029 to the nearest hundredth
1.03
200
What number is 10 times as much as 0.007?
0.07
200
How would you express the number in the chart in expanded form?
2 x 100 + 4 x 10 + 5 x 0.1 + 1 x 0.01 + 6 x 0.001
200
Round 4.326 to the nearest hundredth
4.33
200
Round to the place named.
12.478 to the nearest tenth
12.5
300
During a trip to Philadelphia, Keisha takes a tour of the U.S. Mint. She learns some facts about the coins that are made there. Use the table of facts to solve.
Look at the mass of a dime in grams. How do the values of the 2s in that number compare?
The value of the 2 to the right of the decimal point is one-tenth the value of the 2 to the left of the decimal point.
300
Write the number in word form and expanded form
Jordan’s batting average is 0.284.
word: two hundred eighty-four thoursandths
expanded: 2 x 0.1 + 8 x 0.01 + 4 x 0.001
300
Round 1,349.599 to the nearest whole number
1,350
300
Round to the place named.
10,463.24 to the nearest whole number 6
10, 463
400
What is the total mass of 10 quarters?
56.7 grams
400
Write the number in word and expanded form.
The cost of gasoline is $2.479 per gallon.
Word: two and four hundred seventy-nine thousandths
Expanded: 2 x 1 + 4 x 0.1 + 7 x 0.01 + 9 x 0.001
400
A measurement is 7.2486 cm. Round to the nearest tenth, hundredth, and thousandth; show each step and explain why each rounded result is correct.
7.2 cm, 7.25 cm, 7.249 cm
400
Select all the numbers that round to 6.73 when rounded to the nearest hundredth.
a. 6.724
b. 6.732
c. 6.073
d. 6.726
e. 6.735
b. 6.732
d. 6.726
500
A stack of 10 pennies has a thickness of 15.2 millimeters. What is the thickness of one penny?
1.52 millimeters
500
Andre’s Clues:
• Andre’s number has 7 ones.
• One digit has a value of 8 tenths.
• One digit has a value that is 1/10 the value of the digit in the tenths place.
• The expanded form can be written using only 3 addends.
What is the expanded form of Andre’s number? What is Andre’s number?
Expanded Form: 7 × 1 + 8 × 0.1 + 8 × 0.01
Standard Form: 7.88
500
bonus
Bonus
500
Mr. Nahyan works in the meat and deli department at a grocery store. The table shows the weights of different packages of meat and cheese that he packed or sliced today.
A customer asks for 1.25 pounds of sliced ham and is given the package shown in the table. Did Mr. Nahyan give him what he ordered?
Yes, because 1.250 is the same amount as 1.25.