Fill in the blank to solve the problem
What does the ? equal:
4 +? = 10
14 + ? = 30
6
16
What is the basic fact for the problem:
90 - 10?
9 - 1
What is the basic fact for the problem:
50 + 50
5 + 5
What is the answer to:
10 + 20 ?
30
What is the answer to:
60 - 20?
40
What does the ? equal
24 + ? = 50
54 + ? = 100
26
46
What is the basic fact for the problem:
50 - 30?
5 - 3
What is the basic fact for:
20 + 70 ?
2+7
What is the answer to:
26 + 9
35
What is the answer to:
80 - 30?
50
What does the ? equal
8 + ? = 10
18 + ? = 20
2
2
What is the basic fact for the problem:
400 - 200?
4 - 2
What is the basic fact for:
100 + 90
10 + 9
What is the answer to:
46 + 9?
55
What is the answer to:
100 - 70?
30
What does the ? equal
38 + ? = 50
58 + ? = 100
12
42
What is the basic fact for the problem:
150 - 30?
5 - 3
15 - 3
What is the basic fact for:
120 + 10 ?
12 + 10
2 + 10
What is the answer to:
120 + 80 ?
200
What is the answer to:
70 - 38?
32
What does the ? equal in each problem
3 + ? = 10
13 + ? = 20
13 + ? = 30
13 + ? = 50
13 + ? = 100
7
7
17
37
87
What is the basic fact for the problem:
48 - 6?
8 - 6
What is the basic fact for:
46 + 9?
6 + 9
What is the answer to:
26 + 9?
35
What is the answer to:
37 - 14
23