Mathex Practice!

Select the answers to 2.019⁸ once it has been rounded.

• 200

• 300

• 280

• 270

Selina has just secured an after school job which starts today, August 16^th. She can save $56 each week. If she gets paid weekly every Friday, in what month will she have enough for a new Apple I Phone and accessories costing $899?

• September

• October

• November

• December

In a 125ml serving of choc chip ice cream there were 35 chocolate chips. How many choc chops would there be in a 200ml serving of ice cream?

• 54

• 60

• 64

• 56

On the planet OGG © ! represents the number 12 while ©© ! ! ! represents the number 25.

What number do the symbols ©©©© ! ! represent?

• 46

• 48

• 42

• 50

At 8 am on a very cold Northland winter’s day the temperature was -2.35°C. By midday the temperature had risen to 13.25°C. What was the average temperature rise each hour?

• 5.2

• 5.4

• 5.9

• 3.9

The sum of the squares of the first five counting numbers is equal to a set of 10 consecutive whole numbers. Write down the first and the last number in that 10 number set.

• 1 and 10

• 0 and 9

• -1 and 10

• 6 and 13

What is the largest product you can get by multiplying together different positive integers that add up to 23?

• 132

• 123

• 1260

• 1620

My parrot Bob is 31 years and 31 months and 31 weeks and 31 days old. How old will he be next birthday?

• 35

• 34

• 33

• 32

Factors of 6 are 1, 2, 3, 6.

Factors of 10 are 1, 2, 5, 10

Find the smallest number with exactly 5 factors.

• 11

• 15

• 20

• 16

Jude is making phone covers to sell at the local fair. He can make five a day and have the right amount or he could make 3 a day but it would take him 10 days longer. How many phone covers need to be made?

• 70

• 75

• 80

• 72