Addition & Subtraction within 20
Addition within 100
Subtraction within 100
2D Shapes
3D Shapes
100

14+6

20

100

27+33

60

100

52-33

19

100

How many sides does a quadrilateral have?

4

100

What are the flat surfaces of a 3D shape called?

faces

200

13-4

9

200

52+29

81

200

84-67

17

200

How many vertices does a hexagon have?

6

200

What shape are the faces of a cube?

square

300

6+7

13

300

39+19

58

300

72-31

41

300

What is it called when all the sides are the same length?

congruent

300

How many faces does a cube have?

6

400

20-8

12

400

62+23

85

400

80-26

54

400


What is this shape called?

pentagon

400

What attribute do these 3D shapes have in common?

They have faces shaped like circles.

500

18-9

9

500

77+24

101

500

100-62

38

500

A closed shape with 3 or more sides, and no curves is called?

A Polygon

500

How many 3D shapes do you see?

10