Use the number line strategy to find 19-9

To solve \( 19 - 9 \) using the number line strategy, follow these steps:

1. **Start at 19 on the number line.** This is because 19 is the minuend (the number from which we are subtracting).
   
2. **Move 9 units to the left.** Subtraction means we move to the left (or backward) on the number line. Starting from 19, count 9 units to the left.

3. **Stop at 10.** After moving 9 units left from 19, we land at 10. This means:

\[
19 - 9 = 10
\]

This is how the number line method helps visualize subtraction.

Would you like more details or have any questions? Here are 5 related questions:

1. What is \( 25 - 7 \) using the number line method?
2. How can the number line strategy be used for addition?
3. What happens if you subtract a negative number on the number line?
4. How do you visualize fractions on a number line?
5. Can you use a number line to solve \( 50 - 15 \)?

**Tip:** The number line method is especially helpful when learning to subtract or add, as it gives a clear visual representation of how numbers decrease or increase.

Learn how to use the number line strategy to solve 19 - 9. This step-by-step guide demonstrates how to subtract by moving left on the number line, making it an excellent visual tool for young students learning basic subtraction. Suitable for students in Grades 1-3.

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