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100

Take the number of dots on a 10 sided dice, and multiply by the number of dots on a 4-sided dice, then the answer is

550

100

The number 2020 is not very special. But it is a leap year. How many days are there in between the leap day in 2020 (February 29th) and 20th August 2020

172 

100

There are 36 colored cubes in a box. If half of them are green and a quarter of them are yellow, what is the probability that a cube taken from the box is neither green nor yellow? 

1/4 (9/36)

100

The time on a digital clock shows 5:55. How long, in minutes, will it be before the digital clock has all digits the same again?

316

100

(4+3) x 2 + 6 ÷ 3

16

200

Subtract the smallest number from the biggest number that you can make from rearranging the digits of 2020

2178

200

Substitute the numbers 1, 2, 3, 4 into ab x cd to give the greatest value

162

200

Find the longest set of consecutive numbers that adds up to a number between 90 and 100. Include the first and last consecutive numbers and the number that it adds to in your answer

1 to 13 adds to 91

200

Both a square and a rectangle have a perimeter of 16cm. If their combined area is 31cm2, what are the dimensions of the rectangle?

3 x 5

200

(52 - 10) ÷ 5 + 6 x 2

15

300
What is the value of the 4 middle numbers added together in a 10 x 10 array 

202

300

Name the shape described by the following coordinates (0,0), (4,0), (6,2), (2,2) 

Parallelogram

300

Two right-angled isosceles triangles are shown. What is the difference in area of the two triangles in square units?

1.5 square units

300

Litov's mean value sequence starts with any 2 numbers, and the next number is generated by adding together these numbers and dividing by 2. 

Start with the numbers 3, 5, 4, ..., ..., and continue to add the last two numbers and divide by 2. 

What is the final number, known as the limit? Express your answer as a mixed number.

4 1/3 

300

[(8+4)2 - 64] ÷ 4 + 3 x (5 - 2)

29

400

Three monkeys at the Zoo were given 45 bananas between them. If the difference in bananas that each monkey has was either 5 or 10, what amount of bananas did each of the monkeys have 

10, 15, 20 

400

The angles of a triangle have been described as this:

A = x 

B = x + 6

C = 2(x - 1)

Find the value of x

44

400

How many different rectangles (including squares) of any size can be seen in this figure?

36

400

36 cubes are made into a rectangular prism. 

How many different sized rectangular prisms can be made with 36 cubes?

What are the dimensions of the rectangular prism with the smallest surface area? 

8 prisms, 3 x 3 x 4

400

{[(3+5)2 - 4 x 2] + [(18 ÷ 3)2]} ÷ 2

46
500

Four students are playing each other in tennis. If each student verses every other student exactly once, how many games will there be in total

6

500

Jo notices that when making triangles with all ten matchsticks, she can only make two isoceles triangles. Find the lengths of sides of both these triangles

3, 3, 4 

4, 4, 2

500

Three dogs, Dixie, Pixie, and Trixie were all born on the same day, but in consecutive years. If the sums of pairs of their ages are 9, 10 and 11. How old are the three dogs?

4, 5, 6

500

Proper factors are the factors of a number except the number itself. Numbers are abundant if the proper factors add to more than the number, and deficient if they add to less. 36 is an abundant number - you could check this. Find all the abundant numbers less than 36. 

12, 18, 20, 24, 30

500

{[(23 + 42) - (6 x 3) + (18 ÷ 3)] x (5 + 1)} ÷ [(32 - 2) + 1]

9