Online Test — Multi-Digit Multiplication
10 Questions • 15 min • Chapter MCQ
15:00
Question 1 of 10
easy
15 × 10 = ?
150
15
1500
25
Explanation: × 10 adds a zero → 150.
Question 2 of 10
medium
1250 × 8 = ?
10000
10250
9000
12500
Explanation: 1250 × 8 = 10000.
Question 3 of 10
easy
2000 × 3 = ?
600
6000
60000
2003
Explanation: 2 thousand × 3 = 6000.
Question 4 of 10
easy
1111 × 5 = ?
5555
5550
5055
1115
Explanation: 1111 × 5 = 5555.
Question 5 of 10
easy
Estimate 48 × 21 (nearest 10).
800
1000
1200
900
Explanation: ≈ 50 × 20 = 1000.
Question 6 of 10
hard
48 × 21 = ?
1008
1080
988
1018
Explanation: 48 × 21 = 1008.
Question 7 of 10
hard
1999 × 5 = ?
9995
9985
10995
9095
Explanation: 1999 × 5 = 9995 (think 2000 × 5 − 5).
Question 8 of 10
hard
Best estimate for 297 × 3?
600
900
1200
300
Explanation: ≈ 300 × 3 = 900.
Question 9 of 10
medium
Estimate 1290 × 3 (round 1290).
3000
3900
4000
3600
Explanation: ≈ 1300 × 3 = 3900.
Question 10 of 10
easy
10 × 10 = ?
10
100
1000
20
Explanation: 10 × 10 = 100.