Number Power
What is the set of prime numbers less than 12
{2, 3, 5, 7, 11}
Add 2/5 + 1/5
3/5
A pencil costs $25 and a student buys 4 pencils. How much money did he spend?
$100
Simplify 9x-5x
4x
There are 15 boys and 9 girls in a class. What is the ratio of girls to boys in its simplest term.
3:5
Calculate 35-60
-25
Martha saves 3/7 of her lunch money and spends the rest. What fraction did she spend?
4/7
A store bought a toy for $12 and sold it for $18.
What is the profit?
$6
Simplify: 4a + 8 - 5a + 7 + 2a
a+15
Divide $240 in the ratio 1 : 3
$60 and $180
Evaluate: (-96 ÷ (-6))
16
Write 0.75 as a fraction in its simplest form
3/4
A 25% discount reduces a bag to $75. What was the original price of the bag?
$100
Sarah is (n) years old. Her brother is twice her age. Write an expression for her brother's age
2n
Convert 2 500 g into kilograms
2.5kg
(0.325 x 100)/ 0.5
65
Divide: 2 2/5 divided by 1 1/3
18/10
A student saves 25% of $8 000 allowance. How much did he save?
$2,000
If m=4, n=-2 and p=1. Evaluate (m-n)/3p
The ratio of red marbles to blue marbles is 3 : 5. If there are 15 red marbles, how many blue marbles are there?
25
Calculate: (18 ÷ 3 + 6 x 5 - 23)
28
A recipe needs 2/3 cup of sugar for one cake. How much sugar is needed for 3 cakes?
2 cups
A bicycle cost a shop $8 000 and was sold for $10 400.
Find the profit percentage.
30%
The sum of two sisters’ ages is 48. One sister is 3 years older than twice the age of the other.
Find both ages.
15 years and 33 years
A recipe for 15 muffins uses 300g of flour and 180 g of sugar. Determine the amount of sugar and flow needed to make 45 muffins.
540 g of sugar, 900g of flour.