Significant Figures
Round 3481 to 1 significant figure
3000
Calculate 15% of 20
3
Define the term "radius"
The distance to the centre of a circle from the edge
Describe how to draw a sample space diagram for rolling 2 dice and adding the scores
Draw 6x6 table, label with 1-6, fill in by adding
What is the formula for percentage change?
Change / original x 100
Round 0.02053 to 2 significant figures
0.021
Calculate 51% of 30
15.3
Describe the difference between radius and diameter
Diameter is double radius
What is the probability of rolling 2 dice and getting 6 on both?
1/36
Define the term "congruent"
Shapes that are the same size and shape
Estimate 2.41 + 3.96
6
Calculate 140% of 600
840
What is the formula for area of a circle?
Pi x radius2
Name 3 types of correlation
Positive, negative, none
What is the difference between congruent and similar?
Similar can be different sizes
Estimate 16 x 34
600
Calculate 125% of 80
100
What is the circumference of a circle with radius 12cm? (in terms of pi)
24pi cm
Describe how to draw a line of best fit on a scatter diagram
Straight line as close to as many points as possible
What 3 things are needed to describe rotation?
Degrees, direction, centre
Estimate 13.7 x 0.48
5
Calculate 182% of 400
728
What is the area of a semi-circle with radius 8cm? (in terms of pi)
32pi cm2
What is the name for a point that doesn't fit the trend of a scatter diagram?
Outlier
What is the surface area of a cube with side length 3cm?
54cm2