Show:
Count Back and Word Problems
Fact Families
Relating Addition and Subtraction
Missing Addends
Name for Numbers
100
7-2
5
100
2, 4, 6
2+4=6 4+2=6 6-2=4 6-4=2
100
11-7
11-7=4 4+7=11
100
6+____=14
14-6=8 The missing addend is 8.
100
6
Any addition/subtraction problem that equals 6!
200
9-6=
3
200
3, 5, 2
2+3=5 3+2=5 5-2=3 5-3=2
200
4-2=
4-2=2 2+2=4
200
2+____=6
6-2=4 The missing addend 4.
200
7
Any addition/subtraction problem that equals 7!
300
I hae 15 pencils. 8 are red. How many are blue?
15-8=7
300
15, 7, 8
7+8=15 8+7=15 15-7=8 15-8=7
300
18-10=
18-10=8 10+8=18
300
____+6=13
13-6=7 The missing addend is 7.
300
9
Any addition/subtraction problem that equals 9!
400
I have 18 hats. 6 are baseball hats. How many winter hats do I have?
18-6=12
400
7, 16, 9
7+9=16 9+7=16 16-9=7 16-7=9
400
15-8=
15-8=7 7+8=15
400
9+____=15
15-9=6 The missing addend is 6.
400
12
Any addition/subtraction problem that equals 12!
500
I have 17 stuffed animals. 8 are bears. How many other stuffed animals do I have?
17-8=11
500
6, 14, 8
6+8=14 8+6=14 14-8=6 14-6=8
500
19-6=
19-6=13 6+13=19
500
9+____=13
13-9=4 The missing addend is 4.
500
17
Any addition/subtraction problem that equals 17!