Doubles Facts
+1 Doubles Facts
-1 Doubles Facts
Missing Addend
What's the fact?
100
I am the SUM of this doubles fact: 4 + 4 = ?
8
100
I am a +1 fact for 2 + 2 =
5
100
I am a -1 doubles fact for 4 + 4
3
100
I am a missing addend, when you add 2 to me, the sum is 4. (hint: 2 + ? = 4)
2
100
I am a doubles fact with a SUM of 6.
3 + 3 = 6
200
I am the SUM of this doubles fact 7 + 7 =?
14
200
I am a +1 doubles fact for 5 + 5
11
200
I am a -1 doubles fact for 5 + 5
9
200
I am a missing addend, when you add 6 to me, the sum is 12. (hint: 6 + ? = 12)
6
200
I am a doubles fact with a SUM of 8
4 + 4 = 8
300
I am the SUM of this doubles fact 9 + 9 =
18
300
I am a +1 doubles fact for 6 + 6
13
300
I am a -1 doubles fact for 6 + 6
11
300
I am a missing addend, when you add 8 to me, the sum is 16.
8
300
I am a doubles fact with a SUM of 12
6 + 6 = 12
400
I am the SUM of this doubles fact 10 + 10 =
20
400
I am a +1 doubles fact for 8 + 8
17
400
I am a -1 doubles fact for 9 + 9
17
400
I am a missing addend, when you add 7 to me, the sum is 10.
3
400
I am a doubles fact with a SUM of 18
9 + 9 = 18
500
I am the SUM of this fact 12 + 12 =
24
500
I am a +1 doubles fact for 11 + 11
23
500
I am a -1 doubles fact for 10 + 10
19
500
I am a missing addend, when you add 2 to me, the sum is 20.
18
500
I am a doubles fact with a SUM of 20
10 + 10 = 20
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