Name: _______________________________________
Key Concept: The decimal point separates the whole number part from the fractional part. The first place to the right is the tenths place, and the second is the hundredths place.
1. Write "thirty-six and fifteen hundredths" as a decimal.
2. Write 8.04 in words.
3. In the number 12.79, what is the value of the 9?
Key Concept: To compare decimals, line up the decimal points and compare digits from left to right. You can add zeros to the end of a decimal (annex zeros) without changing its value.
4. Compare using <, >, or =. 9.5 9.45
5. Compare using <, >, or =. 0.67 0.7
6. Order the following decimals from least to greatest: 5.8, 5.08, 5.81, 5.18
Key Concept: The golden rule is to line up the decimal points before you add or subtract. Bring the decimal point straight down into your answer.
7. 15.8 + 7.34 =
8. 24.5 - 6.25 =
9. 9.87 + 0.4 =
10. 12 - 3.7 =
11. Maria had $25.50. She bought a notebook for $3.75 and a pen for $1.99. How much money does she have left?
Key Concept: "Percent" means "per hundred" or "out of 100". A percent is a special fraction with a denominator of 100.
12. Write 45% as a fraction.
13. Write the fraction 7/100 as a percent.
14. If 23 out of 100 students are in the band, what percent of students are in the band?
Key Concepts:
15. Complete the table below by converting between fractions, decimals, and percents.
| Fraction | Decimal | Percent |
|---|---|---|
| 1/2 | ||
| 0.25 | ||
| 20% | ||
| 3/4 | ||
| 0.09 | ||
| 60% |