Addition
13 + 8
21
10 - 5
5
69
60 in the tens
9 in the ones
13, ___, 15, 16
14
What shape has 3 sides?
Triangle
11 + 3
14
15 - 3
12
71
70 in the tens
1 in the ones
26, 27, 28, ___
29
What shape has 4 equal sides?
Square
12 + 8
20
16 - 6
10
80
80 in the tens
0 in the ones
___, 34, 35, 36
33
What shape has 5 sides?
Pentagon
13 + 5
18
18 - 5
13
97
90 in the tens
7 in the ones
61, 62, ___, 64
63
What shapes has 8 sides?
Octogon
21 + 3
24
25 - 5
20
115
100 in the hundreds
10 in the tens
5 in the ones
101, 102, ___, 104
103
What shape has no sides?