module 1: sums and differences to 20

MODULE 1: Sums and Differences to 20

true or false?

draw a picture

number bond

addition

number bond

subtractionmissing addends

10 10 10 10 10

20 20 20 20 20

30 30 30 30 30

40 40 40 40 40

50 50 50 50 50

10 points

Is this statement TRUE or FALSE:

10 + 1 = 2 + 8 + 1

10 points

TRUE

20 points

Is this statement TRUE or FALSE:

3 + 3 + 7 = 4 + 7 + 2

30 points

Is this statement TRUE or FALSE:

38 + 2 = 30 + 10

30 points

TRUE

40 points

Is this statement TRUE or FALSE:

64 + 7 = 70 + 1

40 points

TRUE

50 points

Is this statement TRUE or FALSE:

89 + 9 = 90 + 7

50 points

FALSE

10 points

Draw a picture to show why 10 + 5 = 8 + 7.

Clue: Use 10 frames!

10 points

20 points

Draw 10 frame cards to explain why 14 + 2 = 12 + 4 .

20 points

TRUE

20 points

30 points

Autumn made some cookies. She ate 4 of them and had 16 left. How many cookies did she make?

30 points

20 cookies

40 points

Melia and Maya both love animals. Melia counted 17 puppies in one cage at the animal shelter and 3 in another cage. Maya counted 13 kittens in one cage and 7 in another.

How many kittens were there in all?

40 points

20 kittens

50 points

Isaac has 61 pencils. He gives 8 pencils to a friend. How many pencils does Isaac have left? Draw a picture and write a number sentence to show what you know.

50 points

61- 8 = 5352 + 1 = 53

10 points

Solve using number bonds.

7 + 5 = _______

10 points

7 + 5 = 12

3 2

10 + 2 = 12

20 points

Solve using number bonds.

9 + 4 = _______

20 points

9 + 4 = 13

1 3

10 + 3 = 13

30 points

Solve using number bonds.

15 + 2 = _______

30 points

15 + 2 = 17

10 5

10 + 7 = 17

40 points

Solve using number bonds.

26 + 8 = _______

40 points

26 + 8 = 34

20 6 4 4

20 + 10 + 4 = 34

50 points

Solve using number bonds.

78 + 4 = _______

50 points

78 + 4 = 82

70 8 2 2

70 + 10 + 2 = 82

10 points

Solve using number bonds.

15 - 9 = _______

10 points

15 - 9 = 6

10 5

1 + 5 = 6

20 points

Solve using number bonds.

20 - 3 = _______

20 points

20 - 3 = 17

10 10

10 + 7 = 17

30 points

Solve using number bonds.

41 - 5 = _______

30 points

41 - 5 = 36

31 10

31 + 5 = 36

40 points

Solve using number bonds.

52 - 7 = _______

40 points

52 - 7 = 45

42 10

42 + 3 = 45

50 points

Solve using number bonds.

82 - 9 = _______

50 points

82 - 9 = 73

72 10

72 + 1 = 73

10 points

Write the number to make the number sentence true.

4 + ___ = 9

10 points

4 + 5 = 9

20 points

Write the number to make the number sentence true.

19 = ___ + 13

20 points

19 = 6 + 13

30 points

Write the number to make the number sentence true.

11 - 8 = 2 + ____

30 points

11 – 8 = 2 + 1

40 points

Write the number to make the number sentence true.

16 - 9 = 1 + ____

40 points

16 - 9 = 1 + 6

50 points

Write the number to make the number sentence true.

28 + ____ = 35

50 points

28 + 7 = 35