MATHS

Equations

100

Solve the following excercise:

20x+3=12x

20x+3=12x=

20x-12x=-3

8x=-3

x=-3/8

x=-0.375

200

Solve the following excercise:

x-2=20+3x

x-2=20+3x

 x-3x=20+2 

-2x=22

 x=22/-2

 x=-11

300

Solve the following excercise:

2x-3x=16/2-8

x=0

400

Solve the following excercise:

2x+4.4=21+3

2x=21+3-4.4 

2x=19.6 

x=19.6/2 

x=9.8

500

Solve the following excercise:

12x/-6x=x+2.3-4

-2x=x+2.3-4 

-2x-x=2.3-4

 -3x=-1.7

 x=-1.7/-3

 x=0.56

Bidmas

100

Solve the following excercise:

2x2+5x3

19

200

Solve the following excercise:

3 x (4 x 5²) ÷ 6 + 7 – 8 =

3 x (4 x 5²) ÷ 6 + 7 – 8 = 49

300

Solve the following question:

What does BIDMAS stand for?

B=brackets                                                                        I=Indices                                                                                 D=Division                                                                    M=Multiplication                                                          A=Addition                                                                                       S=Substracion

400

Solve the following question:

What is the order which you solve bidmas ?

First do everything in brackets. Second, do any orders (these are squared, cubed, square root and the like). Any multiplication or divide come next, and finally do any addition or subtraction.

500

Solve the following excercise:

6+4+2+7=

19

Function machines

100

Input:12     

 x2+5

29

200

Input:17

+8x3

41

300

Output:48

-10x3

16

400

Input:36

Output:90

x5 /2

500

Input: 14,13,25

+7x3/6

14) 17.5

13) 16.5

25) 28.5

Unit conversion

100

Solve the following excercise:

1520cm________ m

15.2m

200

solve the following excercise:

57cm 2 as mm 2

5700mm2

300

Solve the following excercise:

35m 3 as cm3

35.000.000cm3

400

Solve the following excercise:

833m2 as cm2

8,330,000

500

Solve the following excercise:

719km 3 as cubic miles

172 (172.497)

RANDOM

100

Answer the Harry Poter question:

Where did Harry and Ron crash?

Boxer tree

200

What is the most visited song in youtube?

Baby shark

300

What is the most listened song of the teacher Manuel?

The Ceremony

400

What was Dwayne Jhonson's first movie?

The scorpion king

500

Which is the formula to calculate kinetic energy?

Ek= mv2/2