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Multiplication
Area of a Rectangle
Angles
Addition
Estimate
100

3x2

6

100
Length = 5cm

Width = 2cm

Area = 10cm2

100

Angle = 45deg.
Acute, Obtuse, or Right?

Acute

100

6 + 5

11

100

Will 6x6 be smaller or bigger than 100?

Smaller (36)

200

8x2

16

200

Length = 6cm
Width = 5cm

Area = 30cm2

200

Angle = 96deg.
Acute, Obtuse, or Right?

Obtuse

200

17 + 4

21

200

Will 66 + 52 be smaller or bigger than 100?

Bigger (118)

300

4x3

12

300

Length = 11m
Width = 7m

Area = 77m2

300

Angle = 76deg.
Left or Right of vertical 90deg line?

Right

300

32 + 49

81

300

Will 19 x 4 be smaller or bigger than 100?

Smaller (76)

400

7x4

28

400

Length= 24cm
Width = 5cm

Area = 120cm2

400

Angle = 180deg.
Describe how this angle looks?

Horizontal line

400

68 + 91

159

400

Will 20 x 6 be smaller or bigger than 100?

Bigger (120)

500

8x6

48

500

Length = 37m
Width = 6m

Area = 222m2

500

Angle = 98deg.
How far is this from 180deg?

82deg

500

73 + 81

154

500

Will 51 x 2 be smaller or bigger than 100?

Bigger (102)