Unit 3: Decimals & Percents Practice #2

Name: _________________________

Date: _________________________

Section 1: Understanding Decimals

1.
Write 8.2 in word form.
2.
Write 21.05 in word form.
3.
Write 0.77 in word form.
4.
Write 300.9 in word form.
5.
Write "Forty-five and eight tenths" as a decimal.
6.
Write "Three and fifty-two hundredths" as a decimal.
7.
Write "Two hundred and one hundredth" as a decimal.
8.
In 61.38, what is the value of the 8?
9.
In 9.04, what is the value of the 4?
10.
In 55.6, what place is the 6 in?

Section 2: Comparing & Ordering Decimals

Compare using <, >, or =.

1.
0.8 0.80
2.
0.42 0.5
3.
7.35 7.3
4.
9.08 9.8
5.
5.2 5.200

Order from least to greatest.

6.
0.6, 0.66, 0.06
7.
3.8, 3.81, 3.18
8.
9.5, 9.05, 9.55
9.
1.1, 1.01, 0.11
10.
4.2, 2.4, 4.02

Section 3: Decimal Arithmetic

1.
6.2 + 3.7 =
2.
9.50 + 2.50 =
3.
15.6 + 4.55 =
4.
0.7 + 0.99 =
5.
50 + 8.3 =
6.
8.9 - 3.4 =
7.
18.5 - 6.75 =
8.
20 - 8.5 =
9.
9.1 - 2.99 =
10.
You have $50. You spend $22.50 on a game. How much money is left?

Section 4: Introduction to Percents

1.
Write \(\frac{45}{100}\) as a percent.
2.
Write \(\frac{2}{100}\) as a percent.
3.
Write \(\frac{87}{100}\) as a percent.
4.
Write 63% as a fraction.
5.
Write 9% as a fraction.
6.
A team won 78% of its games. Write this as a fraction.
7.
Out of 100 cookies, 18 are chocolate chip. What percent are chocolate chip?
8.
A survey finds 3% of people prefer purple cars. Write this as a fraction.
9.
A phone is charged to 95%. What percent is NOT charged?
10.
You score 92 out of 100 on a test. What is your grade as a percent?

Section 5: The Connection: FDP

Complete the chart by converting between Fractions, Decimals, and Percents.

FractionDecimalPercent
\(\frac{3}{4}\)
0.3
40%
\(\frac{1}{10}\)
0.12
80%
\(\frac{65}{100}\) or \(\frac{13}{20}\)
65%