IMO Practice Test — Decimals (Tenths and Hundredths)
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
hard
Add 0.35 + 0.4 + 0.25.
1.0
0.95
1.05
0.9
Explanation: 0.35 + 0.40 + 0.25 = 1.00.
Question 2 of 6
medium
Which decimal is closest to 1?
0.9
0.5
0.1
0.75
Explanation: 0.9 is only 0.1 away from 1.
Question 3 of 6
hard
Which decimal lies between 0.3 and 0.5?
0.4
0.2
0.6
0.55
Explanation: 0.4 is between 0.3 and 0.5.
Question 4 of 6
hard
In the number 7.08, what is the value of the 8?
8 hundredths
8 tenths
8 ones
8 tens
Explanation: 8 is in the hundredths place → 0.08.
Question 5 of 6
medium
Write 0.6 as a fraction in lowest terms.
3/5
6/10
1/6
2/3
Explanation: 0.6 = 6/10 = 3/5.
Question 6 of 6
medium
A pencil costs ₹4.50 and an eraser ₹2.50. Total cost?
₹7.00
₹6.00
₹7.50
₹6.50
Explanation: 4.50 + 2.50 = 7.00.