Decimal Place Value
What is the value of the digit 6 in 3.68?
six hundredths
Which symbol makes this true: 0.328 __ 0.591?
<
Solve: 0.25 + 0.37.
0.62
Write the ordered pair for a point at x = 3 and y = 5.
(3, 5)
Write eight hundred thirty-four thousandths as a decimal.
0.834
True or false: 1.62 = 1.620. Explain briefly.
true, because trailing zeros do not change value
Solve: 0.63 − 0.47.
0.16
If a point is written as (2, 7), which number represents the y-coordinate?
7
In the number 5.376, which digit is in the tenths place, and what is its value?
3, and its value is three tenths
Order these decimals from least to greatest: 0.082, 0.216, 0.8.
0.082, 0.216, 0.8
Estimate to the nearest whole number: 6.9 + 3.8
11
Gina donates $2, $3, and $4. Her aunt always donates $2 more. Write three ordered pairs that show this relationship.
(2,4), (3,5), and (4,6)
A decimal has a 7 in the hundredths place. If the value of the 7 is changed to be 1,000 times greater, what place is the 7 now in, and what is its value?
tens place; worth seventy
Explain why 6.04 rounds to 6.0 to the nearest tenth but 6.05 rounds to 6.1.
6.05 is halfway and rounds up, while 6.04 is less than halfway
Without calculating exactly, determine whether 7.24 + 2.51 is greater or less than 10. Write a short explaination for how you know without solving.
Less than 10
Look at the ordered pairs (2, 10), (3, 15), (4, 20), (8, 40). What is the rule that connects x and y, and how can you tell just by looking at the numbers?
y = x * 5
Create a decimal that has:
• a 4 worth four thousandths,
• a 9 worth nine tenths, and
• a 2 worth two hundredths.
Then write the number in words.
0.924
nine hundred twenty four thousandths
A number rounds to 0.3 to the nearest tenth and 0 to the nearest whole number. What is the greatest possible number it could be?
0.34
A student claims 9.39 − 4.17 = 5.32.
Is the student correct? If not, explain the error and give the correct answer.
Incorrect; it should be 5.22
A point on a coordinate grid is (6, 9). Another point follows the same pattern and has an x-value of 10. What is the y-value of the new point, and how do you know?
(10, 13) because y = x + 3