Mistake Review
6 questions to revisit
Decimal Place Value
A runner ran 2.75 miles on Monday and 3.4 miles on Tuesday. How many miles did she run in total?
Your answer: 6.25
Correct answer: 6.15
💡 Explanation: Line up the decimals: 2.75 + 3.40 = 6.15 miles. Always write 3.4 as 3.40 to align the decimal places.
Word Problem7/5/2026
Round 6.738 to the nearest hundredth.
Your answer: 6.740
Correct answer: 6.74
💡 Explanation: Look at the thousandths digit (8). Since 8 ≥ 5, round the hundredths digit up: 3 becomes 4. Answer: 6.74.
Easy7/5/2026
A number has a 3 in the tenths place, a 5 in the thousandths place, and a 0 in all other decimal places, with 1 in the ones place. What is the number?
Your answer: 0.305
Correct answer: 1.305
💡 Explanation: Build it piece by piece: 1 (ones) + 0.3 (tenths) + 0.00 (hundredths) + 0.005 (thousandths) = 1.305.
Challenge7/5/2026
Round 2.945 to the nearest tenth.
Your answer: 3
Correct answer: 2.9
💡 Explanation: Look at the hundredths digit (4). Since 4 < 5, keep the tenths digit the same. Answer: 2.9.
Standard7/5/2026
Which number is greater: 4.08 or 4.8?
Your answer: 4.08
Correct answer: 4.8
💡 Explanation: Line up the decimals: 4.08 has 0 tenths, while 4.8 has 8 tenths. Since 8 > 0 in the tenths place, 4.8 is greater.
Easy7/5/2026
Write the decimal for "three and five hundredths".
Your answer: 3.030
Correct answer: 3.05
💡 Explanation: "Three" = 3 (whole number). "Five hundredths" = 0.05. Combined: 3.05. Notice there must be a zero in the tenths place.
Easy7/5/2026