Number
Calculate 20/28 * 7/8
5/8
Simplify 12:18
2:3
Find 30% of 210
63
List an element A={square numbers}
1, 4, 9, 16, etc.
Write 0.4 as a fraction in lowest terms
2/5
A jug holds 2L of water. If a cup holds 2/5L, how many cups can the jug fill?
5 cups
The ratio of red to black tokens is 2:3. The ratio of blue to black tokens is 4:1.
What is the ratio of red to black to blue tokens?
2:3:12
Jean got 18 out of 40 on a test. What percentage did Jean get?
45%
Draw A n B as a Venn Diagram
Can 31729 be divided by 3?
No
Calculate 3/5 + 1/2 - 3/4
7/20
David's shares increased in ratio 8:9. If his share was now worth $72, how much was it worth before the increase?
$64
A pair of shoes are discounted at 15%. If the original price was $40, what is the discounted price?
$34
(U denotes the universal set)
U={x | 10 < x < 20, x e Z}
A={multiples of 2}
What is n(A)?
4
What is the square root of 144?
12
Class 1 has 24 students and class 2 has 18 students. The students are to be arranged in such a way that each row contains equal number of students and also each row should only have students from class 1 or 2 but not mixed.
What is the greatest number of students that can be arranged in each row?
6
1 HKD = 7.2 PHP
Find how much 800HKD is worth.
5760 PHP
Simon invests $300 with 2% simple interest per annum. How much does Simon have in total after 4 years?
$324
There are 30 students in a class. 10 of them play tennis, 11 play football and 15 play neither sport.
How many play both?
6
Write 4/7 as an exact percentage
51 1/7%
If they both leave central at 8am how many minutes until they are both at central again?
400 minutes
1 USD = 7.8 HKD
1 HKD = 3100 VND
Find out how much 5 USD is worth in VND
120,900 VND
Sarah invests $200 with a 10% compound interest per annum. How much does Sarah have after 2 years?
$242
Draw A n (B u C)'
See diagrams
Change 0.717171... into a fraction
71/99