Olympiad Test: Multiplication - 1 - Class 4 MCQ

23 × 100 = 2300

Option is A. 38

• Step 1: Multiply the two numbers 11 and 11 together.


• Step 2: 11 multiplied by 11 equals 121.


• Step 3: Therefore, the correct answer is 121 (Option B).

Here 25 × 25 = 625

Clearly 24 is not divisible by 5. All other are divisible.

 Here 32 is odd one out.

∴ 32 = odd one out

• 22 × 5 = 110

• To calculate 22 × 5, you simply multiply 22 by 5.


• 22 × 5 = 110


• Therefore, the correct answer is 110 (option C).

• Given: -------------- × 5 = 50


• Let x be the unknown number:


• Writing the equation: x × 5 = 50


• Solving for x: x = 50 / 5 = 10

• Divide both sides by 5: This is done to isolate the variable x on one side of the equation.


• Substitute the value of x back into the equation: We substitute x = 10 back into the equation to check if it satisfies the equation.


• Verify the solution: 10 × 5 = 50. Since this is true, the solution x = 10 is correct.

• Therefore, the unknown number is 10.

• 9 × 400 = 3600

• Multiplication:




• When you multiply 9 by 9, you are essentially adding 9 a total of 9 times.


• So, 9 multiplied by 9 is the same as 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9, which equals 81.

• Multiplication Rule: When any number is multiplied by 0, the result is always 0.


• Calculation: 500 multiplied by 0 equals 0.

• Multiplication:




• 7899 multiplied by 1 is equal to 7899.




• Answer:




• The answer is option B: 7899.

Here 500 × 400 = 20,0000
(∴ 5 × 4 = 20)

------------ × 12 = 96

• A:

  3



• B:

  5



• C:

  8



• D:

  9

• First, we need to find the missing number that, when multiplied by 12, gives a result of 96.


• To find the missing number, we need to divide 96 by 12.


• 96 ÷ 12 = 8


• Therefore, the missing number is 8.


• Hence, the correct answer is C: 8.

Therefore, the correct answer is C: 8.