Mathematics - Term 2 - Week 10

Place value is the value of where a digit is in a number. In a two-digit number, the first digit represents the number of tens, and the second digit represents the number of ones. For example, in the number 34, the '3' is in the tens place and represents 30, while the '4' is in the ones place and represents 4. Together, they make 34.

Let's take the number 56. To understand its place value, we can break it down: the '5' is in the tens place, which means it represents 50, and the '6' is in the ones place, representing 6. So, 56 can be expressed as 50 + 6. We can use blocks or drawings to visualize this, showing 5 groups of ten blocks and 6 single blocks.

Now, let's practice together. I will write a number on the board: 72. Can anyone tell me what the value of the '7' is? Yes, it is 70 because it is in the tens place. And what about the '2'? Correct, it is 2 because it is in the ones place. Let's do another one: 45. What are the values of the digits? Great job! The '4' is 40 and the '5' is 5.

Now it's your turn! Solve the following problems on your own. 1. What is the place value of the '3' in 83? 2. Break down the number 29 into tens and ones. 3. Write the number that has 4 tens and 7 ones. Remember to show your working clearly!

• 6
• 60
• 600
• 16

Answer: 60

The '6' is in the tens place, so it represents 60.

• 35
• 53
• 25
• 73

Answer: 35

The number 35 has 3 tens (30) and 5 ones (5).

Answer: 9

The '9' is in the ones place, so its value is 9.

• 2 tens and 1 one
• 1 ten and 2 ones
• 21 ones
• 2 ones and 1 ten

Answer: 2 tens and 1 one

The number 21 consists of 2 tens (20) and 1 one (1).

Answer: 30 and 4

34 can be broken down into 30 (3 tens) and 4 (4 ones).

• 4
• 40
• 400
• 14

Answer: 40

The '4' is in the tens place, so it represents 40.

• 50
• 15
• 25
• 35

Answer: 15

The number 15 has 5 ones (5) and 1 ten (10).

Answer: 23

The number with 2 tens (20) and 3 ones (3) is 23.