Decimals and Place Value — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. The value of the digit 4 in 3.47 is 4 tenths.
In 3.47, the 4 is in the tenths place with a value of 4 tenths (0.4).
2. 50100 written as a decimal is 0.50.
50100 = 50 hundredths = 0.50 (also equal to 0.5 or 12).
3. On a number line, 0.75 is between 0.7 and 0.8.
0.75 is between 0.7 (= 0.70) and 0.8 (= 0.80) on the number line.
4. The decimal that equals 810 is 0.8.
810 = 8 tenths = 0.8.
5. In 6.02, the 2 is worth 2 hundredths.
In 6.02, the 2 is in the hundredths place, worth 2100 = 0.02.
6. 15100 written as a decimal is 0.15.
15100 = 15 hundredths = 0.15.
7. The decimal halfway between 0.1 and 0.2 is 0.15.
Halfway between 0.10 and 0.20 = (0.10 + 0.20) ÷ 2 = 0.30 ÷ 2 = 0.15.
8. $0.99 is 99 hundredths of a dollar.
$0.99 = 99 hundredths of a dollar = 99 cents.
9. 410 + 3100 written as one decimal is 0.43.
410 = 0.40, plus 3100 = 0.03: 0.40 + 0.03 = 0.43.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
310
→ 0.3
0.60
72100
→ 0.72
0.05
5100
→ 0.05
0.3
60100
→ 0.60
0.72
310=0.3; 72100=0.72; 5100=0.05; 60100=0.60.