Decimal Detectives
What is the value of the digit 7 in 4.725?
Answer: 7 tenths, or 0.7
Which symbol makes this statement true?
0.6 ___ 0.8
Answer: <
Round 4.67 to the nearest tenth.
Answer: 4.7
You have $5.00 and want to buy something that costs $4.67.
How much money will you have left?
Answer: $0.33
I am thinking of a decimal between 4.5 and 4.6. My hundredths digit is 7.
What could I be?
Answer: 4.57
Write 6.304 in expanded notation.
Answer: 6 + 0.3 + 0.004
Which is greater?
0.45 or 0.405
Answer: 0.45
Round 8.234 to the nearest hundredth.
Answer: 8.23
“0.9 is smaller than 0.85 because 85 is bigger than 9.”
Are they correct?
Answer: No! 0.9 = 0.90, and 0.90 > 0.85.
Use a zero to make this comparison true:
3.5 ___ 3.50
Answer: =
What decimal is represented by 8 + 0.05 + 0.002?
Answer: 8.052
Put these decimals in order from least to greatest:
0.72, 0.702, 0.27, 0.207
Answer: 0.207, 0.27, 0.702, 0.72
Round 6.75 to the nearest tenth.
Answer: 6.8
A video game character has 12.756 points. If the score is rounded to the nearest tenth, what is the score?
Answer: 12.8
Which number does NOT belong with the others?
0.5, 0.50, 0.500, 0.05
Answer: 0.05
In 12.638, what is the value of the digit 8?
Answer: 8 thousandths, or 0.008
True or False:
3.500 = 3.5
Answer: True
Round 12.496 to the nearest hundredth.
Answer: 12.50
Two friends are arguing:
Friend 1: “2.5 is greater than 2.499.”
Friend 2: “No, 2.499 is greater because it has more digits.”
Who is correct?
Answer: Friend 1.
2.500 > 2.499
Which is greater?
9.099 or 9.09
Answer: 9.099
Because 9.090 < 9.099.
Which decimal represents 3 + 0.4 + 0.07 + 0.006?
A. 3.476
B. 3.467
C. 3.706
D. 34.76
Answer: A. 3.476
Which decimal is the greatest?
A. 5.089
B. 5.809
C. 5.098
D. 5.890
Answer: D. 5.890
A student says 7.349 rounded to the nearest tenth is 7.3.
Are they correct? Explain.
Answer: No. The hundredths digit is 4, so the tenths digit stays the same. Actually, 7.349 → 7.3, so yes, they are correct!
Your favorite creator gets 1.999 million views. Round that number to the nearest hundredth.
Answer:2.00
Without calculating exactly, which is closest to 10?
A. 9.09
B. 9.909
C. 9.99
D. 9.099
C.9.99