Olympiad Test Level 1: Computing Operations
20 Questions MCQ Test | Olympiad Test Level 1: Computing Operations
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Find the missing number 165 + 52 + 10 = 52 + ? + 10
According to order
property of addition, the numbers can be added in any order. So,
165 + 52 + 10 = 52 + 165 + 10
If A = 25 + 7,825 and B = 4,525 + 75, find the difference between A and B.
A = 25 + 7,825 = 7,850
B = 4,525 + 75 = 4,600
A – B = 7,850 – 4,600 = 3,250
Look at the two number sentences shown below :
8 × = 40, 40 ÷ 8 =
Which number goes in each box to make each number sentence true ?
8 × 5 = 40 and 40 ÷ 8 = 5
(100 – 10) – (100 – 10)= 90 – 90 = 0
The sum of 1,727 and 6,475 is ________.
1,727 + 6,475 = 8,202
The product of one’s digits, that is, 3×7 = 21. So, the one digit of the product will be 1. The
product of 347 and 23 is 7,981.
112 is divisible by which one of the following numbers ?
Last digit is 2, so it is an even number. Thus 112 is divisible by 2.
4 + 14 + 1 = 18 + 1 = 19
How many numbers given in the figure come in the table of 7 ?
Which of the following represents the additive identity property of 0 ?
It means that additive identity is “0” as adding 0 to any number, gives the sum as the number itself. For any set of numbers, that is, all integers, rational numbers, complex numbers, the additive identity is 0.
So here, 14 + 0 = 14 is the correct answer.
Difference between the two numbers is 400. If one of the numbers is 300 greater than 600, find the other number.
One number is 300 greater than 600 = 600 + 300 = 900 Difference = 400
Other number = 900 – 400 = 500
Find the missing number to fill in the blank box
111 + 9 = ⌧+ 7
111 + 9 = 120 = 113 +7
63 ÷ 7 = 9
Find the value of A, B and C respectively.
In an examination hall, 500 chairs were arranged equally in 10 rows. How many chairs are there in each row ?
Number of chairs in each row = 500 ÷ 10 = 50
43 is more than 33.
Add the 6,523 + 2,364. Which one of the following numbers is in the hundreds place of the resulting addition ?
6523 + 2364 = 8887
So, digit 8 is hundreds of places.
When we divide 0 by 3, we get _______.
0 divided by any number gives 0.
So, 0 ÷ 3 = 0.
I am the smallest odd number that comes after 4,386. Add 632 to me. What number am I now ?
Smallest odd number after 4,386 is 4,387.
4,387 + 632 = 5,019
Sandhya cycled from Tree B to Tree C. She then cycled from Tree C to Tree A. How far did she cycle altogether ?
A = 25 + 7,825 = 7,850
B = 4,525 + 75 = 4,600
A – B = 7,850 – 4,600 = 3,250
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