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MODULE 1: Sums and Differences to 20. 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. - PowerPoint PPT Presentation
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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