Canta Math Home Learning challenge

Here is one of the Canta math practices that we had to do

2010 Year 7 Cantamaths Questions 1-10

	Question	Answer
1	Two books together cost $32 in a sale at Every Educaid. If one book cost $8.60 more than the other, how much did the less expensive book cost?	7.40
2	The product of two prime numbers is 51. Their sum is 20. What are the two prime numbers?	3 and 17
3		98.73
4	It takes a 9 person cleaning crew 5 hours to clean an office building. One night three members of the crew failed to turn up to work. Assuming every member of the crew always works at the same rate as all the others every time they clean, how many minutes will it take the crew to clean the building?	360 minutes
5		6 and  3

	Question	Answer
6	The padlock on Michael’s suitcase uses a 3 letter code. Each of the three letters is either A, B, C, D, or E. How many possible combinations are there?	60
7	Vili has a 12.5 metre long rope that he forms into a rectangle for a game. If the length of the rectangle is 1 and a 1/2 times the width, what is the area of the rectangle in m2?	103.75
8	Jeremy has 4 less than 3 times as many DVDs at his house than Joella. Together they have 56 DVDs. How many DVDs does Jeremy have?	26
9	What do you get when you add four tenths, thirty six hundredths and seventy two thousandths? Write your answer as a decimal.	0.832
10		111111