Online Test — Multi-Digit Multiplication
10 Questions • 30 min • Chapter MCQ
30:00
Question 1 of 10
easy
14 × 2 = ?
24
28
26
212
Explanation: 14 doubled is 28.
Question 2 of 10
hard
A hall has 28 rows of 25 chairs. How many chairs altogether?
650
700
750
560
Explanation: 28 × 25 = 700.
Question 3 of 10
easy
To estimate a product, you first…
round the numbers
add the numbers
subtract
ignore the numbers
Explanation: Round each number, then multiply.
Question 4 of 10
easy
A book has 120 pages. How many pages are in 3 such books?
240
360
300
330
Explanation: 120 × 3 = 360.
Question 5 of 10
medium
A bus carries 45 people. How many people in 12 full buses?
540
440
550
57
Explanation: 45 × 12 = 540.
Question 6 of 10
medium
56 × 13 = ?
718
728
738
628
Explanation: 56 × 3 = 168 and 56 × 10 = 560; 168 + 560 = 728.
Question 7 of 10
easy
Estimate 19 × 4 by rounding 19.
80
60
100
40
Explanation: ≈ 20 × 4 = 80.
Question 8 of 10
easy
Estimate 48 × 21 by rounding to the nearest 10.
800
1000
1200
900
Explanation: ≈ 50 × 20 = 1000 (exact is 1008).
Question 9 of 10
hard
A factory makes 135 toys a day. How many in a 7-day week?
945
905
1035
142
Explanation: 135 × 7 = 945.
Question 10 of 10
medium
34 × 11 = ?
344
374
354
364
Explanation: 34 × 11 = 34 + 340 = 374.