Equal Groups
... ... ...
___ groups of ____
3 groups of 3
5+5=
10
2x5=
10
.... ....
____ groups of ____
2 groups of 4
5+5+5=
15
3x7
21
.. .. .. ..
___ groups of ___
4 groups of 2
2+2+2+2=
8
4x8
32
..... ..... .....
___groups of ____
3 groups of 5
4+4+4=
12
10x6=
60
.... .... .... .... ....
___groups of ___
5 groups of 4
3+3+3+3+3=
15
5x9=
45