Complete That Number Bond
10
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9 ?
1
25 + 3 = ?
25 + 3 = 28
5 + 3 = 8
20 + 8 = 28
9 + 2 = ?
9 + 2 = 11
9 + 1 = 10
10 + 1 = 11
11 - 8 = ?
11 - 8 = 3
10 - 8 = 2
2 + 1 = 3
What is a sum?
The result of adding two numbers together
10
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6 ?
4
32 + 40 = ?
32 + 40 = 72
30 + 40 = 70
70 + 2 = 72
7 + 5 = ?
7 + 5 = 12
7 + 3 = 10
2 + 10 = 12
80 - 6 =?
80 - 6 = 74
10 - 6 = 4
4 + 70 = 74
What is RDW?
Read
Draw
Write
30
/\
10 ?
20
54 - 3 = ?
54 - 3 = 51
4 - 3 = 1
1 + 50 = 51
18 + 4 = ?
18 + 4 = 22
18 + 2 = 20
20 + 2 = 22
16 - 9 = ?
16 - 9 = 7
10 - 9 = 1
1 + 6 = 7
What is a difference?
The result of subtracting one number from another.
16
/\
10 ?
6
78 - 30 =?
78 - 30 = 48
70 - 30 = 40
40 + 8 = 48
8 + 54 = ?
8 + 54 = 62
54 + 6 = 60
60 + 2 = 62
22 - 9 = ?
22 - 9 = 13
10 - 9 = 1
1 + 12 = 13
Ms. Gardner had 17 pencils. She found 4 more pencils. How many pencils does Ms. Gardner have now?
Write a number sentence and statement to answer.
17 + 4 = 21
17 + 3 = 20
20 + 1 = 21
Ms. Gardner has 21 pencils.
57
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50 ?
7
43 - 21 = ?
43 - 21 = 22
40 - 20 = 20
3 - 1 = 2
20 + 2 = 22
38 + 7 = ?
38 + 7 = 45
38 + 2 = 40
40 + 5 = 45
72 - 9 = ?
72 - 8 = 64
10 - 8 = 2
2 + 62 = 64
Walking back to her classroom, Miss Kupfer dropped 5 journals on the ground. She had 31 journals in her hands. How many journals is Miss Kupfer carrying now? Write a number sentence and statement to answer.
31 - 5 = 26
10 - 5 = 5
21 + 5 = 26
Miss Kupfer has 26 journals.