Olympiad Test: Numbers - 3 - Class 2 MCQ

To find how many tens make 120, you divide 120 by 10.

120 ÷ 10 = 12

Therefore, 12 tens make 120.

Thus, the correct answer is Option A.

The number 36 can be broken down as:

• 3 tens (which equals 30),
• 6 ones (which equals 6).

Thus, 36 is represented as 3 tens + 6 ones.

Therefore, the correct answer is Option D.

Let's match the statements with the correct numbers:

1. Two-digit largest number: The largest two-digit number is 99 (Option B).
2. Two-digit smallest number: The smallest two-digit number is 10 (Option C).
3. Smallest natural number: The smallest natural number is 1 (Option A).

Therefore, the correct answer is Option B: 1-B, 2-C, 3-A.

In the number 124, we can break it down into the following digits:

• 1 is in the hundreds place.
• 2 is in the tens place.
• 4 is in the ones place.

So, the digit in the tens place is 2.

Therefore, the correct answer is Option B: 2.

The number 658 is written in words as "Six hundred fifty-eight". This is because:

• 6 is in the hundreds place, so it is written as "Six hundred."
• 5 is in the tens place, so it is written as "fifty."
• 8 is in the ones place, so it is written as "eight."

Therefore, the correct answer is Option B: Six hundred fifty-eight.

The smallest two-digit number is 10.

• 11 is a two-digit number, but it is larger than 10.
• 100 is a three-digit number, not a two-digit number.
• 99 is a two-digit number, but it is larger than 10.

Thus, the correct answer is Option B: 10.

In the number 712, the digits are as follows:

• The hundreds place is the leftmost digit, which is 7.
• The tens place is 1.
• The ones place is 2.

So, the digit in the hundreds place is 7.

Therefore, the correct answer is Option A: 7.

In the number 523, the digit 5 is in the hundreds place. Therefore, the value of the digit 5 is 500, as it represents 5 hundreds.

The number 48 can be broken down as:

• 4 tens (which equals 40)
• 8 ones (which equals 8)

So, 48 is represented as 4 tens + 8 ones.

Thus, the correct answer is Option A: 4 tens + 8 ones.

 In the number 731, the digit 3 is in the tens place. The place value of a digit depends on its position. Since the 3 is in the tens place, its place value is 30.