General
What are "Natural" numbers?
Positive whole numbers.
What is a polygon? Give some examples.
a closed figure with all sides straight. Triangle, square, rectangle, ...
When a fair dice is tossed once what is the probability of rolling a prime number?
0.5
Simplify the ratio 55:25.
11:5
Convert 5230m to km
5.23km
What is the difference between a proper fraction and an improper fraction? Solve: 3/4 + 5/6
In a proper fraction, the denominator is always of greater value than the numerator. Answer: 9/12 + 10 / 12 = 19/12 = 1 7/12
What's the difference between area and perimeter? What the area and perimeter of a rectangle with side lengths 4 cm, 7 cm, 4 cm, and 7 cm?
Perimeter is the distance around a polygon and area is the amount of space a polygon takes up. P: 4 + 4 + 7 + 7 = 22 cm A: 4 x 7 = 28 cm ^2
A box contains 50 balls, out of which 35 are white and the rest are black. A ball is selected at random from the box. Calculate the probability that the ball selected is black. simplify your answer.
0.3
Share GHc9000 between Sally and Bob in the ratio 2:1. How much did each of them get?
Salley gets GHc6000
Bob gets GHc 3000
Rahma draws a scale of Galaxy playing field. She uses the scale of 1cm to 25m.
On her drawing the length of the field is 4cm.
what is the actual length of the field?
100m
Work out 75% of 2400.
1800
What are the different types of triangles? How do you find the area of a triangle?
Scalene, isosceles, equilateral. Bonus: Obtuse, right angle, acute A: (base x height) / 2
What is the probability of choosing a vowel from the English alphabet?
5/26
A School choir is made up of girls and boys in the ratio 4:3. There are 35 students in the choir altogether.
How many of the students are boys?
How many of the students are girls?
20 girls
15 boys
Dotlyn takes part in an 18km run. the distance of the route on a map is 24cm.
Find the scale of the map.
1cm:750m
Work out 0.25 of 3200
800
What's the different between a prism and a pyramid?
A prism has a triangular base and a pyramid has a square base.
A number from 1 - 21 is chosen at random. What is the probability of choosing an odd number? An even number?
Odd: 11/21 Even: 10/21
Kofi, Aba, and Yaa shared $3600 in the ratio 3:4:5.
How much did Aba get?
Aba got $1200
Work out the distance between (4,3) and (4,-5)
9 units
Solve: 5x+2(x-4)=41
x=7
A parallelogram has parallel sides of 11cm and 7cm. If the height of the parallelogram is 5cm calculate the area of the parallelogram.
45 unit square
Solve: P(rolling an even number on a single die) + P(choosing a vowel) + P(rolling an odd on a single die)
= 3/6 + 5/26 + 3/6 = 3/6 + 3/6 + 5/26 = 6/6 + 5/26 = 130/130 + 25/130 = 155/130 = 1 5/26
John and Jane shared an amount of money in the ratio 2:3. If Jane got $300. How much did they share?
$500
Find the image of the point (-2,4) when it is translated 4 squares to the right and 2 squares up.