Decimals and Place Value — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Sara has $2.45 and Ben has $2.54. Who has more money?
A) Sara, because 45 > 54
B) Ben, because 2.54 > 2.45
C) They have the same
D) Sara, because she has 4 tenths
Comparing tenths: both have 4 in ones, but 5 tenths > 4 tenths — wait, both have 2 in ones. Comparing tenths: 2.54 has 5 tenths vs 2.45 has 4 tenths. 5 > 4, so 2.54 > 2.45.
2. Which decimal equals 610?
A) 0.06
B) 0.006
C) 0.60
D) 6.10
610 = 6 tenths = 0.6 = 0.60 (equivalent with trailing zero).
3. In 3.72, what is the value of the digit 7?
A) 7
B) 0.7
C) 0.07
D) 70
In 3.72, the 7 is in the tenths place — its value is 7 tenths = 0.7.
4. A ribbon is 0.5 m and a string is 0.48 m. Which is longer?
A) The string because 48 > 5
B) The ribbon because 0.50 > 0.48
C) They are the same length
D) The string because it has more digits
0.5 = 0.50 = 50 hundredths; 0.48 = 48 hundredths. 50 > 48, so the ribbon is longer.
Part B: Fill in the Blank
Write the correct answer on each line.
1. Mia ran 1.3 km and Noah ran 1.08 km. The longer distance is 1.3 km.
1.3 = 1.30 = 130 hundredths; 1.08 = 108 hundredths. 130 > 108, so 1.3 > 1.08.
2. A store sells juice for $0.95 and milk for $1.05. The cheaper drink costs $0.95.
$0.95 < $1.05 — juice is cheaper.
3. Write 3 and 27 hundredths as a decimal: 3.27.
3 and 27 hundredths = 3.27 (whole number 3, decimal part 27100).
4. On a number line, 0.65 is between 0.6 and 0.7.
0.65 is between 0.6 (= 0.60) and 0.7 (= 0.70).
5. The fraction 90100 as a simplified fraction is 910.
90100 ÷ 1010 = 910.