BIDMAS
Riddles
Solve for x
Algebra
Math's Concepts
100

(3+2)x5

25

100

It belongs to you, but your friends use it more. What is it?

Your name. 

100

x+5=3

x=-2

100

Expand

2(x+3)

2x+6

100

Two lines that never meet but stay an equal distances apart are known as what types of lines? 

Parallel lines. 

200

3+(8x3)-10

17

200

Kate’s mother has three children: Snap, Crackle and ___?

Kate

200

3x-5=4

x=3
200

Simplify by collecting like terms 

3x+5x-2x

6x

200

All angles inside a triangle must add to what number? 

180 degrees

300

16-3(1-2)

19

300

You’re running a race and at the very end, you pass the person in 2nd place. What place did you finish the race in?

You finished in 2nd place.

300

2x+3=1

x=-1

300

Is the following equation true or false? 

3a + (4a + 3a) = (3a + 4a) + 3a

True! 

300

A triangle made of all equal side lengths and angles is known as what type of triangle? 

Equilateral

400

(4-2)2-(15-6)

-5

400

I have a tail and a head, but no body. What am I?

A coin. 

400

2(x+3)=16

x=5

400

Simplify 

4ab x 5a2bc

20a3b2c

400

A 3D shape laid out in as connected 2D shapes is known as a what? 

A net. 

500

2(3-4x5+13)

-8

500

Which word becomes shorter when you add 2 letters to it?

'Short' becomes 'Shorter' by adding e and r. 

500

x2-9=0

x = 3 and x=-3

500

Expand the following 

-2x(x - 5) 

-2x2+10x

500

How many edges does a cube have? 

12 edges.

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