Answer Key: May Newsletter

Triangle Challenge:

There are 27 triangles!

1 big triangle
16 little triangles
7 triangles made up of 4 smaller triangles
3 triangles made up of 9 smaller triangles!

>> 1 + 16 + 7 + 3 = 27!<<

 

12 x 12 Multiplication Challenge!
X 1 2 3 4 5 6 7 8 9 10 11 12
1 1 2 3 4 5 6 7 8 9 10 11 12
2 2 4 6 8 10 12 14 16 18 20 22 24
3 3 6 9 12 15 18 21 24 27 30 33 36
4 4 8 12 16 20 24 28 32 36 40 44 48
5 5 10 15 20 25 30 35 40 45 50 55 60
6 6 12 18 24 30 36 42 48 54 60 66 72
7 7 14 21 28 35 42 49 56 63 70 77 84
8 8 16 24 32 40 48 56 64 72 80 88 96
9 9 18 27 36 45 54 63 72 81 90 99 108
10 10 20 30 40 50 60 70 80 90 100 110 120
11 11 22 33 44 55 66 77 88 99 110 121 132
12 12 24 36 48 60 72 84 96 108 120 132 144

 

Time yourself!

How Fast can you answer these problems?

6 x 5 = _30_ 4 x 3 = _12_ 2 x 8 = _16_ 3 x 9 = _27_ 1 x 8 = _8_
8 x 7 = _56_ 3 x 6 = _18_ 4 x 2 = _8_ 2 x 7 = _14_ 7 x 3 = _21_
4 x 5 = _20_ 5 x 12 = _60_ 10 x 3 = _30_ 8 x 9 = _72_ 7 x 11 = _77_
6 x 8 = _48_ 9 x 9 = _81_ 3 x 12 = _36_ 11 x 4 = _44_ 5 x 8 = _40_
2 x 4 = _8_ 7 x 6 = _42_ 3 x 9 = _27_ 6 x 4 = _24_ 8 x 3 = _24_