3rd Class Mathematics Computation Operations Computation Operations Question Bank
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This is a free to download question bank for Class 3 Mathematics Computation operations. These questions are strictly based on the syllabus of Class Mathematics and follow the guidelines of NCERT, CBSE and KVS.
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1) Jeremy wanted to build 3 model planes for his cousins and 4 model planes for his parents.
If he needs to use 864 building blocks to build 6 model planes, how many building blocks would he need to build all his model planes?
Answer : _____________
2) There are 483 pebbles in the garden. There are twice as many black pebbles as grey pebbles and twice as many white pebbles as black pebbles in the garden. How many more white pebbles than grey pebbles are there?
Answer : ___________
3) Mr Singh is taking 317 children to the Kolkata Science Centre. Each minivan can seat 9 children and each bus can seat 30 children. If there are only 9 buses available, what is the smallest number of minivans needed?
Answer : ____________
4) There were 180 pins. Zoya put them in red boxes and blue boxes. Each red box contained 4 more pins than each blue box. There were 5 red boxes and 3 blue boxes. How many pins were there in one blue box?
Answer : ______________
5) Dan collected 2 times as many stamps as Eli. Farah collected 1585 more stamps than Dan. If Dan collected 820 stamps,how many fewer stamps did Eli collect than Farah?
 1995
 2405
 2815
 3635
6) What is the missing digit in the box below?
 5
 7
 3
 4
7) Mindy has 131 green beads. Sandy had ten times as many green beads as Mindy. How many more green beads did Sandy have than Mindy?
 1179
 1221
 1310
 1441
8) There are a total of 50 ducks and goats in a farm. They have 154 legs altogether.
a) How many ducks are there?
Answer : __________
b) How many goats are there?
Answer : __________
9) What is the value 🌸 ?
Answer : _________
10) Amar, Ben and Chirag have a total of 46 marbles.
Amar and Chirag have 32 marbles altogether.
Ben and Chirag have 25 marbles altogether.
How many marbles does Chirag have?
Answer : ______________
11) 780 stamps were shared among Jenny, Ivy and Sai. Jenny had 3 times as many stamps as Ivy. Sai had twice as many stamps as Jenny. How many stamps did Jenny have?
Answer : ____________
12) Mrs Laboni baked 288 cookies. If she kept 48 cookies for herself and distributed the rest equally to 6 of her friends, how many cookies will each friend get?
 8
 40
 48
 240
13) What is the missing number in the box?
Answer : __________
14) Mary and Leela had some books. After Leela bought 2 more books, she had twice as many books as Mary. How many books did Leela have at first if Mary had 20 books?
Answer : ______________
15) _______ x 7 = 35 + 7 + 7 + 7
What is the missing number?
 5
 8
 21
 56
16) Which one of the following has the greatest difference?
 4752 and 7796
 5076 and 1856
 8388 and 5288
 9242 and 6225
17) The difference between 2 numbers is 72. If the smaller number is 238, what is the bigger number?
 144
 155
 166
 310
18) There were 2905 people at a fair. 809 of them were men, 1005 were women and the rest were children. How many children were there at the fair?
 1091
 1900
 2096
 2709
19) Adrian had 2089 stamps. After giving Ben and Chris some stamps, he had 950 stamps left. If 544 stamps were given to Ben, how many stamps were given to Chris?
Answer : ___________
20) Mohan has 17 birds and cats in total. If he counted 44 legs in all, how many birds are there? A bird has 2 legs. A cat has 4 legs.
Answer : __________
21) Fill in the missing blanks.
Answer : A =_________, B =____________
22) Hena had some stickers. She bought another 120 stickers and gave 70 away. She had 200 stickers left. How many stickers did she have at first?
Answer : __________
23) Bala gave 8 stickers to each of his 7 friends. Then he found out that he had 6 stickers left for himself. How many stickers did Bala have at first?
 21
 50
 56
 62
24) 9 x 7 = ______  1
 62
 63
 64

65
25) Which of the following is the same as 7 x 4?
 4 + 4 + 4 + 4
 4 x 4 x 4 x 4
 7 + 7 + 7 + 7
 7 x 7 x 7 x 7
26) If 🌸 + 🌸 = 20
and 🐝 + 🐝 + 🐝 + 🐝 = 20
and 🎄 + 🎄 + 🎄 + 🎄 + 🎄 = 20
Then 🌸 + 🐝 + 🎄 =______________________________
Answer : ___________
27) Billy gave 509 cards to Amy.
He gave 175 more cards to Lucy than to Amy.
If he gave 447 more cards to May than to Lucy, how many cards did he give to May?
Answer : _________________cards
28) Mrs Lahiri had a packet of sweets.
After giving 8 sweets to each of the 9 children, she had 55 sweets left.
How many sweets were there in the packet at first?
Answer : _____________sweets
29) Mrs Seth bought 2 packets of chicken wings on Monday and 3 times as many on Tuesday. If each packet of chicken wings cost ₹60, how much did she spend altogether on both days?
Answer: ______________
30) 8410  6300 = _________ + 100
Answer : _________
31) Leah had 150 game cards. She put them in 5 equal bags. She gave 2 of the bags to Amy. How many cards had Leah left?
Ans: _______________
32) 35 pupils are lining up to board a bus.
Jenny is the 12th person from the front.
Ahmad is the 5th person from the back.
How many people are standing between Jenny and Ahmad?
Answer : ________________
33) 6350 = ________  350
Ans: ________________
34) What is the sum of 2061 and 473?
 2434
 2534
 3534
 6791
35) What is 5 four equal to?
 5 x 5 x 5 x 5
 5 + 5 + 5 + 5
 4 + 4 + 4 + 4 + 4
 4 x 4 x 4 x 4
36) There were 9 teams of pupils taking part in a competition. Each team was made up of 4 pupils. How many pupils took part in the competition?
 36
 27
 13
 5
37) 1806 + 2723 = 6000  _______
 1471
 2479
 2581
 4529
38) Ali has 8 stamps. Bill has 6 times as many stamps as Ali. How many stamps do they have altogether?
 14
 22
 48
 56
39) 5 x 8 = 5 + ________.
 5
 8
 35
 40
40) Anand, Bela and Cheng have 872 marbles altogether.
Anand has 4 times as many marbles as Bela.
Cheng has 50 more marbles than Bela.
How many marbles does Bela have?
Ans: ________________
41) 6 x 7 = ? x 7 +7 + 7. Find the missing number.
 21
 28
 3
 4
42) There were 860 adults at the stadium.
3 times as many men as women were at the stadium.
How many men were there?
Ans: ________________
43) There are a total of 12 chickens and cows in a farm. If there are 40 legs altogether, how many of each type of animals are there?
Ans: __________________
44) Ben has 20 more marbles than David. How many marbles must Ben give to David so that Ben will have 4 more marbles than David?
Ans: __________________
45) A sky train can take up to 1160 passengers. At the first station, there were 1097 passengers on board the train. At every station, 45 passengers alighted and 54 boarded. How many more stations did the train have to stop before it was fully occupied?
Ans: ______________
46) Varun, Liz and Ahmad share 247 marbles.
Varun has the most number of marbles.
Liz has 32 marbles less than Varun.
If Ahmad has 47 marbles, how many marbles does Varun have?
Ans: _______________
47) 8 + 8 + 8 is the same as ____________.
 888
 38
 3 x 8
 8 x 8 x 8
48) Seema bought some packets of balloons for her birthday party.
There were 8 balloons in each packet.
After she used 10 packets to decorate the house, she had 7 packets left.
How many balloons did she buy at first?
 24
 70
 136
 150
49) All of them swam more than 2 laps but less than 8 laps.
None of them swam the same number of laps.
Mike swam the most number of laps.
Nick swam an odd number of laps.
Dan swam 2 more laps than Josh while Peter swam 1 more lap than Josh.
(a) Using the information given, complete the table below.
(b) Which two boys swam a total of 8 laps?
Name of boy  Number of laps 
Ans: (b)_______________
50) What are the missing digits?
Ans: A __________________
B __________________
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