Subtracting small numbers

• 1. Learn how to subtract positive and negative numbers.

2. The Beginning Before we learn how to subtract numbers, we have to learn how to add the numbers. 3. Positive and Negative Numbers We will use black tiles to represent positive numbers. We will use red tiles to represent negative numbers. 4. Lets do some adding! 3 + (-3) = ? 5. If you guessed 0, than your answer was correct! The 3 and -3 equal each other out. 6. I think we need some more practice! What is 4 + (-7) = ? 7. Youre right! The answer is -3! 8. We will do one more adding problem. What is 4 + (-2) = ? 9. You are correct! The answer is 2! 10. Now we will move to negatives! We will first start by subtracting positives. 11. What is 5-2=? 12. We can actually use the tiles to flip around the problem. 5-2 = 5+(-2). 13. You are right! The answer is 3! 14. Lets try another one. What is 7-2= ? 15. 7-2 is equal to 7+(-2) 16. If you guessed 5, you are correct! 17. We will try one more before subtracting negatives. What is 6-4= ? 18. 6-4 is equal to 6 + (-4). So. 19. The answer is 2! Great Job! 20. Subtracting Negatives Subtracting a negative is like adding a positive. 21. Lets try some. What is 4-(-1) = ? 22. 4-(-1) is equal to 4+1. 23. If you guessed 5, you are right! 24. If you take out both negatives and add an addition sign, you will get the right answer. 25. What is 4-(-3) = ? 26. 4-(-3) is equal to 4+3. 27. Youre right! The answer is 7! 28. Lets try one more. What is 2-(-1) = ? 29. Remember 2-(-1) is equal to 2+1. 30. If you guessed 3, you are correct! 31. You did excellent. Hopefully, I have helped you grasp the concept of subtracting small numbers. 32. Works Cited When doing this project, I used clipart on power point and I also used my own pictures!