What is the rule to calculate area of a triangle?
A = 1/2 x b x h
What is the rule to calculate the volume of a rectangular prism?
V = l x w x h
A hot air balloon floats 28 km in 12 minutes.
Write this as a rate.
28km / 12minutes
How much money has this person earned in 3hrs of work?
$60
BONUS 80 POINTS: What is the rate of $/hour shown on this graph?
Fill in the gap:
1cm3 = __mL
1cm3 = 1mL
What is the rule to calculate area of a circle?
What shape is this?
Cylinder
A frog eats 16 flies in 8 minutes.
Write the rate, then simplify.
16 flies / 8 minutes
2 flies / minute
What is the rate of pay ($/hr) shown on this graph?
HINT: how many dollars($) are lined up with 1hour of work?
$10/hour
Convert 20cm to mm
20cm x 10 = 200mm
Calculate the area of this shape:
A = (pi) r2 /2
A = (pi) x 42 /2
A = 25cm2
What kind of shape is this?
How do I calculate its volume?
Triangular Prism
V = 1/2 x base x height x length (or Height)
A giant python slithers along at a rate of 18 cm/s. How far will the python go in 25 seconds?
18 x 25 = 450cm
A car drives 8km in 5mins. Write the rate, then calculate the speed of the car per minute.
8km/5mins
8/5 = 1.6km/minute
BONUS 80 points: How far would the car drive in an hour?
Convert 500cm2 to m2
500 / 1002 = 0.05m2
Find the area of this shape:
A1 = 1/2 x b x h
= 0.5 x 6 x 4
= 12cm2
A2 = l x w
= 5 x 6
= 30cm2
TA = A1 + A2
= 30 + 12
= 42cm2
Calculate the surface area of this shape:
SA = 207.3cm2
An iceberg floats in the ocean at a speed of 4m/2sec. How far has the iceberg travelled in 40 seconds?
4m/2sec
2m/sec
2 x 40 = 80m
This graphs shows the number of books sold compared to price.
What is the rate: dollars / book ?
BONUS 80 POINTS: How many dollars would it be if there were 12 books sold?
Convert 1200mL to litres
1200mL / 1000 = 1.2L
Calculate the area of this trapezium:
A = 1/2 (a+b)h
A = 0.5 x (4 + 8) x 5
A = 30cm2
Calculate the unknown side if the volume is 144cm3
V = l x w x h
144 = 8 x 3 x X
144/24 = x
x = 6cm
A zoo keeper can feed 8 lions in 2 hours. How many lions does the same zoo keeper feed in 13 hours?
8 lions / 2hrs
4lions / hr
4 x 13 = 52 lions
A phonecall costs $6/minute. Fill out the table using the rate.
X = minutes
Y = $
0 x $6 = 0
1 x $6 = $6
2 x $6 = $12
3 x $6 = $18
4 x $6 = $24
Convert 400'000m3 to km3
0.0004km3