Mathematics - Term 3 - Week 9

Addition is the process of combining two or more numbers to find a total. For example, if you have 2 apples and you get 3 more, you can add them together: 2 + 3 = 5 apples. Subtraction, on the other hand, is taking away a number from another. If you have 5 apples and you give away 2, you subtract: 5 - 2 = 3 apples. Both operations are essential for solving everyday problems.

Let's look at the problem: 4 + 3. We can use counters or draw dots to visualize this. Start with 4 dots: ••••. Then add 3 more dots: •••. Count all the dots together: 1, 2, 3, 4, 5, 6, 7. So, 4 + 3 = 7. This shows how we can use visual models to help us understand addition.

Now, let's practice subtraction together. Consider the problem: 6 - 2. We can use a number line to help us. Start at 6 on the number line. To subtract 2, we move 2 spaces to the left. Count the spaces: 5, 4. We land on 4. Therefore, 6 - 2 = 4. Let's try another one together: 8 - 3. What do you think the answer is?

Now it's your turn to solve some problems on your own. Here are a few to try: 1) 5 + 4 = ? 2) 10 - 6 = ? 3) 3 + 7 = ? 4) 9 - 5 = ? Remember to show your working by using drawings or number lines if needed. After you finish, we will review your answers together.

• 8
• 9
• 10
• 11

Answer: 9

When you add 7 and 2 together, you get 9.

• 2
• 3
• 1
• 0

Answer: 2

Subtracting 3 from 5 leaves you with 2.

Answer: 10

Adding 4 and 6 gives you a total of 10.

Answer: 8

When you take away 4 from 12, you are left with 8.

• 6
• 7
• 8
• 9

Answer: 8

The sum of 3 and 5 is 8.

• 6
• 7
• 8
• 5

Answer: 7

Subtracting 2 from 9 results in 7.

Answer: 5

When you subtract 10 from 15, you get 5.

Answer: 4

Adding 2 and 2 together equals 4.