Addition
2+2=
4
2
circle, oval
How many?
* * * * * * * * * *
10
Count by 10s to 20
10, 20
4+2=
6
4-2=
2
What shape has 3 sides?
triangle
How many?
* * * * * * * *
8
Count by 10s to 40
10, 20, 30, 40
7+3=
10
10-1=
9
What shapes have 4 sides?
rectangle, square
How many?
* * * * * * * * * * * * * * *
Count by 10s to 60
10, 20, 30, 40, 50, 60
5+7=
12
10-10=
0
What shape has 6 sides?
hexagon
How many?
* * * * * * * * * * * * * * * * * *
18
Count by 10s to 80
10, 20, 30, 40, 50, 60, 70, 80
10+10=
10-9=
1
What shape is the earth?
sphere
How many?
* * * * * * * * * * * * * * * * * * * *
20
Count by 10s to 100
10, 20, 30, 40, 50, 60, 70, 80, 90, 100