Olympiad Test: Addition and Subtraction - 1 - Class 2 MCQ

Less amount = Rs. 55 – Rs. 40
 = Rs.15

To find which option equals 60, let's solve each equation:

Option A: 90 – 20 = 70

Option B: 90 – 30 = 60

Option C: 90 – 40 = 50

Option D: 90 – 10 = 80

The correct equation that equals 60 is B: 90 – 30.

So, the correct answer is B: 90 – 30.

To find the missing number, we can set up the equation as:

43 − missing number = 24

Now, to solve for the missing number, subtract 24 from 43:

43 − 24 = 19

So, the missing number is 19.

Thus, the correct answer is C: 19.

Total balls = 7 + 8 + 6 = 21 balls

• Rishi initially has 43 oranges.
• Out of these, 13 oranges are rotten.
• To find the fresh oranges, subtract the rotten ones from the total:
• 43 - 13 = 30
• Therefore, Rishi has 30 fresh oranges.

15 Novels + 16 Biographies = 31

To find the missing number, we can set up the equation as:

81 − missing number = 73

Now, subtract 73 from 81:

81 − 73 = 8

So, the missing number is 8.

Thus, the correct answer is A: 8.

To find the missing number, we can set up the equation as:

5 + missing number = 13

Now, subtract 5 from 13:

13 − 5 = 8

So, the missing number is 8.

Thus, the correct answer is C: 8.

We are given the equation:

7 + 9 + 1 + 4

Step-by-Step Calculation:

First, add 7 and 9:
7 + 9 = 16

Then, add 1 to the result:
16 + 1 = 17

Finally, add 4 to the result:
17 + 4 = 21

Thus, the sum of 7 + 9 + 1 + 4 equals 21.

Therefore, the correct answer is B: 21.