Scientific Notation and Significant Figures
Converting Units
Perimeter
Area
100
What is the number 0.00987 written as in Scientific Notation?
9.87 x 10-3
100
Convert 7000 m to km
7 km
100
Find the value of x
x = 8.8
100
A sliding door has two glass panels. Each of these is 2.1 m high with a breadth of 1.8 m. How many square metres of glass are needed?
7.56 m2
200
What is the basic numeral of 7.09 x 102?
709
200
Convert 600 seconds to minutes
10 minutes
200
Find the value of x
x = 1
200
What is the area of the house shown, in square metres?
252.05 m2
300
What is the basic Numeral of the number 5 x 10-2?
0.05
300
Convert 2000 mm to cm
200 cm
300
What is the perimeter of the following shaded part of the shape? (in metres)
60 m
300
Find the value of the pronumeral in this shape, rounding to 2 decimal places.
b = 2.88 cm
400
What is number 0.08516 in scientific notation rounded to 1 significant figure?
9 x 10-2
400
An athlete has completed a 5.5 km run. How many metres did the athlete run?
5500 metres
400
What is the perimeter of the following shaded part of the shape?
69. 4 m
400
Find the area of the composite shape below. 
178.54 m2
500
What is (2.85 x 10-9) x (9 x 107)? Leave your answer in Scientific Notation and round to 4 Significant Figures.
1.804 x 10-11
500
A snail is moving at a rate of 43 mm every minute. How many centimetres will the snail move in 5 minutes?
21.5 cm
500
A rectangular paddock has a perimeter of 100 m. Find the breadth of the paddock if its length is 30 m.
20 m
500
Find the area of these composite shapes, correct to 1 decimal place.
63.5 m2
600
Two Planets are 2.8 x 108 km and 1.9 x 109 km from their closest sun. What is the difference between these two distances? Write your answer as scientific notation.
1.62 x 109 km
600
Why do you think that builders measure using only millimetres?
For a high level of accuracy
600
Find the formula for the perimeter of the following shape, using the pronumeral given. 
2l + 2b
600
Free Points?
Yes to both teams
700
The diameter of Earth is approximately 12,756,000 m. If the Sun’s diameter is 109 times that of Earth, compute its diameter in kilometres. Express your answer in scientific notation, correct to 3 significant figures
1.39 x 106
700
How many metres of timber is needed to construct the following frame?
23.4 m
700
Find the formula for the perimeter of the following shape, using the pronumeral given.
3s
700
A lawn is made up of a semicircle with diameter 6.5 m and a triangle of length 8.2 m, as shown. Find the area of lawn, correct to 2 decimal places.
43.24 m2