Online Test — Multi-Digit Multiplication
10 Questions • 15 min • Chapter MCQ
15:00
Question 1 of 10
easy
4,523 x 4 = ?
18,092
18,902
16,092
18,082
Explanation: 4x3=12(write 2 carry 1), 4x2+1=9, 4x5=20(write 0 carry 2), 4x4+2=18. Answer: 18,092.
Question 2 of 10
easy
7,068 x 8 = ?
56,544
56,054
57,544
56,504
Explanation: 8x8=64(carry 6), 8x6+6=54(carry 5), 8x0+5=5, 8x7=56. Answer: 56,544.
Question 3 of 10
medium
34 x 26 = ?
884
894
984
844
Explanation: 34 x 6 = 204. 34 x 20 = 680. 204 + 680 = 884.
Question 4 of 10
medium
Estimate 487 x 32 (round to nearest hundred x nearest ten).
15,000
16,000
14,000
20,000
Explanation: 487 rounds to 500; 32 rounds to 30. 500 x 30 = 15,000.
Question 5 of 10
medium
A box has 24 packets with 75 pencils each. Total pencils?
1,800
1,700
1,850
2,400
Explanation: 24 x 75: 24x5=120, 24x70=1,680. Total=1,800.
Question 6 of 10
medium
6,005 x 3 = ?
18,015
18,105
18,005
18,115
Explanation: 3x5=15(write 5 carry 1), 3x0+1=1, 3x0=0, 3x6=18. Answer: 18,015.
Question 7 of 10
medium
45 x 56 = ?
2,520
2,250
2,512
2,625
Explanation: 45x6=270, 45x50=2,250. 270+2,250=2,520.
Question 8 of 10
hard
What is the missing number? 3,___ x 5 = 17,505
501
451
505
403
Explanation: 17,505 / 5 = 3,501. So the number is 3,501.
Question 9 of 10
medium
A train runs 1,248 km per day. How far does it run in 7 days?
8,736 km
8,736 km
8,726 km
8,736 km
Explanation: 1,248 x 7: 7x8=56(carry 5), 7x4+5=33(carry 3), 7x2+3=17(carry 1), 7x1+1=8. Answer: 8,736 km.
Question 10 of 10
easy
Which is the best estimate for 89 x 47?
4,000
3,500
5,000
9,000
Explanation: 89 rounds to 90; 47 rounds to 50. 90 x 50 = 4,500. Closest to 4,000.