1. LEARNING HOW TO ADD AND SUBTRACT! BY: MEGAN HICKAM If you are looking at these activities at home have a parent or adult help you

2. WHAT IS ADDITION? Definition: If A and B are non-negative numbers, then we can define the sum A+B as the total numbers, then we can define the sum A+B as the total number of objects we will have if we start with A objects and then get B more objects

3. BUT WHAT DOES THIS MEAN?!?!?!?!?!?!?!?!

4. WHO LIKES CANDY? WHAT IS YOUR FAVORITE KIND?

5. CANDY EXAMPLE PROBLEM Your teacher gives you 2 recces pieces. At lunch time your friend gives you 1 more recess pieces. How many pieces of recess pieces do you have?

6. HOW MANY RECCES PIECES DID YOUR TEACHER GIVE YOU? 2 pieces

7. HOW MANY MORE RECCES PIECES DID YOUR FRIEND GIVE YOU AT LUNCH 1 Piece

8. HOW MANY RECESS PIECES DO YOU HAVE NOW? How many pieces did your teacher give you? How many pieces did you friend give you? Count the total number of pieces. How many pieces did you count?

9. HOW MANY TOTAL RECESS PIECES DO YOU HAVE? 1 2 3 3 recess pieces total

10. USING NUMBERS! 21+ = 3

11. DO YOU GET IT? TRY THESE EXAMPLES ON YOUR OWN USE THE CANDY PROBLEM TO HELP YOU

12. YOUR MOM GIVES YOU 5 VANILLA CUPCAKES AND 5 CHOCOLATE CUPCAKES TO SHARE WITH YOUR FRIENDS. HOW MANY CUPCAKES DID YOUR MOM GIVE YOU?

13. HOW MANY VANILLA CUPCAKES DID YOUR MOM GIVE YOU? 5 vanilla cupcakes

14. HOW MANY CHOCOLATE CUPCAKES DID YOU MOM GIVE YOU? 5 chocolate cupcakes

15. HOW MANY CUPCAKES DID YOUR MOTHER GIVE YOU TO SHARE WITH YOUR FRIENDS? COUNT THE CUPCAKES!

16. COUNT THE CUPCAKES 10 cupcakes to share 1 2345 678910

17. WHAT DID WE JUST DO? WE ADDED! 5 vanilla cupcakes + 5 chocolate cupcakes = 10 cupcakes!!!!

18. YOU AND YOUR FRIEND ARE EACH MAKING A CAKE. THE RECIPE CALLS FOR 2 CUPS OF SUGAR. HOW MUCH SUGAR WILL YOU AND YOUR FRIEND NEED TO MAKE 2 CAKES?

19. HOW MUCH SUGAR DOES ONE CAKE RECIPE REQUIRE? 12

20. HOW MUCH SUGAR WILL TWO CAKE RECIPES REQUIRE? Count the number of cups!

21. HOW MUCH SUGAR WILL TWO CAKE RECIPES REQUIRE? Count the number of cups! 1 23 4

22. WHAT DID WE JUST DO? 2 cups = 1 cake + =?

23. 4 CUPS OF SUGAR!

24. WHAT IS SUBTRACTION? Definition: If A and B are non- negative numbers such that A is greater than or equal to B, then we can define the difference A-B as the total number of objects we will have if we start with A objects and take away B of those objects.

25. BUT WHAT DOES THIS MEAN?!?!?!?!?!?!?!?!

26. WHO LIKES TOYS?

27. TOY EXAMPLE PROBLEM You bring 4 toys to school. You let one of your friends borrow 1 toy. How many toys do you have left to play with?

28. HOW MANY TOYS DID YOU BRING TO SCHOOL? 4 toys

29. HOW MANY TOYS DID YOU LET YOUR FRIEND BORROW? 1 toy

30. HOW MANY TOYS DO YOU HAVE LEFT? Toy you gave to your friend

31. HOW MANY TOYS DO YOU HAVE LEFT? 1 2 3 You have 3 toys left!!!!!!!

32. WHAT DID WE JUST DO? We subtracted!!!! You start with 4 toys and then you give 1 toy to your friend 4 toys - 1 toy = 3 toys

33. DO YOU GET IT? TRY THESE EXAMPLES ON YOUR OWN USE THE TOY PROBLEM TO HELP YOU

34. YOU ARE GOING TO THE LIBRARY TO GET SOME BOOKS. YOU GET 5 BOOKS. WHEN YOU GET HOME YOUR SISTER ASKS YOU IF SHE CAN READ SOME OF YOUR BOOKS. YOU GIVE YOUR SISTER 2 BOOKS. HOW MANY BOOKS DO YOU HAVE TO READ NOW?

35. HOW MANY BOOKS DID YOU GET AT THE LIBRARY? 1 2 3 45 5 books

36. HOW MANY BOOKS DID YOU GIVE YOUR SISTER? 1 2 2 books

37. HOW MANY BOOKS DO YOU HAVE LEFT? Books you give your sister

38. HOW MANY BOOKS DO YOU HAVE LEFT? 123 3 books

39. WHAT DID WE JUST DO? You start with 5 books and you gave 2 to your sister - = 5 books2 books 3 books We subtracted!!!!

40. YOU HAVE 10 JELLY BEANS. YOU WANT TO SHARE YOUR JELLY BEANS WITH YOUR FRIEND. YOU GIVE YOUR FRIEND 6 JELLY BEANS. HOW MANY JELLY BEANS DO YOU HAVE LEFT TO EAT?

41. HOW MANY JELLY BEANS DID YOU START WITH? 12 3 4 5 6 78910 10 jelly beans!!!

42. HOW MANY JELLY BEANS DID YOU GIVE TO YOUR SISTER 6 jelly beans 123456

43. HOW MANY JELLY BEANS DO YOU HAVE LEFT? 6 Jelly beans you gave your friend

44. HOW MANY JELLY BEANS DO YOU HAVE LEFT? 123 4 4 jelly beans

45. WHAT DID WE JUST DO? 10 jelly beans6 jelly beans - = 4 jelly beans!!! We subtracted!!!

46. VISIT OUR CLASS WEBSITE FOR ADDITIONAL ADDING AND SUBTRACTING RESOURCES Click the candy bar to get back to our class website!