Olympiad Test: Numbers - 2 - Class 2 MCQ

Ten tens (10 x 10) equal 100, so the correct answer is option C.

Given the equation:

941 = 900 + a + 1

Combine like terms on the right-hand side:

941 = 901 + a

Subtract 901 from both sides to solve for a:

• a = 941 - 901
• a = 40

70 tens is equal to 700, and subtracting 5 tens (which is 50) from it gives:

• 700 - 50 = 650

The number 650 is correctly written as 'six hundred and fifty' in words.

Three hundred and one can be expressed numerically in the following way:

• 301 is the correct representation.

To clarify:

• The number 301 consists of three hundred and one units.
• It is important to note that 31, 310, and 300 are incorrect representations.

Thus, the accurate way to write three hundred and one is 301.

To find the nearest hundred to 186, follow these steps:

• Examine the tens digit of the number, which is 8.
• Since 8 is greater than or equal to 5, we round up.
• This means we increase the hundreds place from 1 to 2.
• As a result, the nearest hundred is 200.

Nearest ten of 96 = 100 because 6 is five or greater and we have to move 1 ten ahead of 90, that is 100.

To find the nearest hundred to 202, follow these steps:

• Identify the tens digit in the number.
• In this case, the tens digit is 0.
• Since 0 is less than 5, we round down.
• This means we round down to 200.

To find the nearest hundred for 176, look at the tens digit. Here’s how to determine the rounding:

• The tens digit in 176 is 7.
• Since 7 is 5 or above, you round up.
• The next hundred after 176 is 200.

Therefore, the nearest hundred is 200.

To find the nearest ten to 43, follow these steps:

• Examine the ones digit, which is 3.
• Since 3 is less than 5, we round down.
• This means we round to the lower ten.

Therefore, the nearest ten to 43 is 40.