Online Test — Multi-Digit Multiplication
10 Questions • 15 min • Chapter MCQ
15:00
Question 1 of 10
medium
Estimate 1290 × 3 (round 1290).
3000
3900
4000
3600
Explanation: ≈ 1300 × 3 = 3900.
Question 2 of 10
medium
1234 × 3 = ?
3602
3702
3692
3712
Explanation: 1234 × 3 = 3702.
Question 3 of 10
easy
Estimate 19 × 4 (round 19).
80
60
100
40
Explanation: ≈ 20 × 4 = 80.
Question 4 of 10
hard
32 × 25 = ?
750
800
850
700
Explanation: 32 × 25 = 800.
Question 5 of 10
hard
48 × 21 = ?
1008
1080
988
1018
Explanation: 48 × 21 = 1008.
Question 6 of 10
easy
1000 × 9 = ?
900
9000
90000
1009
Explanation: 1000 × 9 = 9000.
Question 7 of 10
medium
56 × 13 = ?
718
728
738
628
Explanation: 56 × 3 = 168, 56 × 10 = 560; 168 + 560 = 728.
Question 8 of 10
easy
1111 × 5 = ?
5555
5550
5055
1115
Explanation: 1111 × 5 = 5555.
Question 9 of 10
medium
Estimate 78 × 9 (round 78).
630
720
800
700
Explanation: ≈ 80 × 9 = 720.
Question 10 of 10
hard
1999 × 5 = ?
9995
9985
10995
9095
Explanation: 1999 × 5 = 9995 (think 2000 × 5 − 5).