Online Test — Decimal Operations
10 Questions • 30 min • Chapter MCQ
30:00
Question 1 of 10
hard
1.2 × 5 = ?
5.0
6.0
6.5
5.5
Explanation: 1.2 × 5 = 6.0.
Question 2 of 10
easy
0.3 × 3 = ?
0.9
0.09
9.0
0.33
Explanation: 3 × 3 = 9, one decimal place → 0.9.
Question 3 of 10
medium
1.25 + 2.75 = ?
3.90
4.00
3.00
4.10
Explanation: 1.25 + 2.75 = 4.00.
Question 4 of 10
easy
0.5 × 10 = ?
0.05
5
50
0.5
Explanation: × 10 moves the point one place right → 5.
Question 5 of 10
medium
0.45 × 100 = ?
4.5
45
450
0.0045
Explanation: Two places right → 45.
Question 6 of 10
easy
1.2 + 0.3 = ?
1.5
1.05
4.2
1.23
Explanation: 1.2 + 0.3 = 1.5.
Question 7 of 10
easy
0.5 × 100 = ?
5
50
500
0.05
Explanation: × 100 moves the point two places right → 50.
Question 8 of 10
easy
0.07 × 10 = ?
0.7
7
0.007
70
Explanation: × 10 moves the point one place right → 0.7.
Question 9 of 10
medium
0.25 × 4 = ?
0.1
1.0
1.25
0.29
Explanation: Four quarters = 1.0.
Question 10 of 10
easy
0.5 + 0.5 = ?
0.10
1.0
0.55
0.1
Explanation: 5 tenths + 5 tenths = 10 tenths = 1.0.