Kungfu math p1 slide2 (addition and subtraction)

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Kungfu math p1 slide2 (addition and subtraction)

  1. 1. Whole Numbers Addition and Subtraction What will we learn today? • Solving 1-step word problems involving addition and subtraction
  2. 2. Here’s an example.
  3. 3. Here’s an example.You have 2 toy cars. I give you 3 more toycars. How many toy cars do you have now? + =
  4. 4. Here’s an example.You have 2 toy cars. I give you 3 more toycars. How many toy cars do you have now? + = 2 + 3 = 5
  5. 5. Here’s an example.You have 2 toy cars. I give you 3 more toycars. How many toy cars do you have now? + = 2 + 3 = 53 more than 2 is 5.You have 5 toy cars now.
  6. 6. Here’s another example.By using the count-on method,you can easily find the answers
  7. 7. Here’s another example. 5 squaresBy using the count-on method,you can easily find the answers
  8. 8. Here’s another example. 5 squaresBy using the count-on method,you can easily find the answers
  9. 9. Here’s another example. 5 squaresBy using the count-on method,you can easily find the answers 6 +1
  10. 10. Here’s another example. 5 squaresBy using the count-on method,you can easily find the answers 6 7 +1 +1
  11. 11. Here’s another example. 5 squaresBy using the count-on method,you can easily find the answers 6 7 8 +1 +1 +1
  12. 12. Here’s another example. 5 squaresBy using the count-on method,you can easily find the answers 5 + 3 = 8
  13. 13. Let’s try another question together.
  14. 14. Let’s try another question together.Jimmy has 13 books.His brother gives him 6 more books.How many books did Jimmy have now? 13
  15. 15. Let’s try another question together.Jimmy has 13 books.His brother gives him 6 more books.How many books did Jimmy have now? 1314 15 Using count-on method +1
  16. 16. Let’s try another question together.Jimmy has 13 books.His brother gives him 6 more books.How many books did Jimmy have now? 1314 15 16 Using count-on method +1 +1
  17. 17. Let’s try another question together.Jimmy has 13 books.His brother gives him 6 more books.How many books did Jimmy have now? 1314 15 16 17 Using count-on method +1 +1 +1
  18. 18. Let’s try another question together.Jimmy has 13 books.His brother gives him 6 more books.How many books did Jimmy have now? 1314 15 16 17 18 Using count-on method +1 +1 +1 +1
  19. 19. Let’s try another question together.Jimmy has 13 books.His brother gives him 6 more books.How many books did Jimmy have now? 1314 15 16 17 18 19 Using count-on method +1 +1 +1 +1 +1
  20. 20. Let’s try another question together.Jimmy has 13 books.His brother gives him 6 more books.How many books did Jimmy have now? 1314 15 16 17 18 19 Using count-on method +1 +1 +1 +1 +1 Answer: 19
  21. 21. Are you ready to try out the questions?

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