Fact Triangles
what is the missing fact
5+4=9
9-5=4
9-4=5
4+5=9
show 30 with l and .
l l l
Is it easier to count up or down?
10-7=
count up =3
up- 8,9,10
down-10,9,8,7,6,5,4,3
what is the value of the 6 in 36?
6
10-5=
5
what is the missing number 3,4, ?
3+4=__
4+3=___
___-4=3
___3+4
7
show 54 with l and .
l l l l l . . . .
Is it easier to count up or down?
13-4=
down- 9
up- 5,6,7,8,9,10,11,12,13
down-12,11,10,9
what is the value of the 3 in 36?
30
21-7=
14
what is the missing number 10,4,?
4+___=10
__+ 4=10
10- 4=___
10-__=4
6
Show 21 a different way
answer will very
Is it easier to count up or down?
12-8=
up-4
up- 8,10,11,12
down-12,11,10,9,8,7,6,5,4
what is the value of the 7 in 78?
70
15+5=
20
what are the 4 facts families that go with 5, 6, 11
5+6=11
6+5=11
11-5=6
11-6=5
Show 15 a different way
answers will very
Is it easier to count up or down?
15-10=
up-5
up-11,12,13,14,15
down- 15,14,13,12,11,10,9,8,7,6,5
what is the value of the 8 in 78?
8
25+5=
30
what are the 4 fact families that go with 13, 3, 10
3+10=13
3+10=13
13-10=3
13-3=10
show 32 two different ways
answers will very
Is it easier to count up or down?
21-11=
up- 10
up-11,12,13,14,16,17,18,19,20,21
down-21,20,19,18,17,16,15,14,13,12,11,10
what is the value of the 4 in 432?
400
30-7=
23