Mathematics - Term 3 - Week 8

Place value is the value of where a digit is in a number. In a two-digit number, the first digit represents the 'tens' place, and the second digit represents the 'ones' place. 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. We can break it down into its place values. The 5 is in the tens place, which means it represents 50. The 6 is in the ones place, representing 6. So, 56 can be expressed as 50 + 6. This helps us understand how each digit contributes to the overall value of the number.

Now, let's practice together. I will say a number, and you will tell me the value of each digit. For example, if I say 72, what is the value of the 7? (Students respond: 70). What is the value of the 2? (Students respond: 2). Great job! Let's try a few more numbers together: 45, 81, and 29.

Now it's your turn to solve some problems on your own. Write down the place value of each digit in the following numbers: 63, 84, and 27. Then, create a number using the digits 4 and 5, and explain its place value to a partner.

• 3
• 30
• 300
• 40

Answer: 30

The digit 3 is in the tens place, which means it represents 30.

• 8
• 80
• 800
• 18

Answer: 80

The 8 is in the tens place, so it represents 80.

Answer: 6

The digit 6 is in the ones place, so it represents 6.

• 20
• 2
• 200
• 50

Answer: 2

The digit 2 is in the ones place, so it represents 2.

Answer: 30 + 4

The 3 represents 30 and the 4 represents 4, so together they make 34.

• 25
• 15
• 51
• 50

Answer: 50

In the number 50, the 5 is in the tens place.

Answer: 9

The digit 9 is in the ones place, so it represents 9.

• 4 + 7
• 40 + 7
• 4 + 70
• 47

Answer: 40 + 7

The 4 represents 40 and the 7 represents 7, so the total is 40 + 7.