Unit 1
How long is one side in a square that has the area 100cm2?
10cm
What is the next number in the sequence:
7, 14, 21, 28, 35
42
Make B the subject of the formula
2a = b
a=b/2
Three cookies costs 36kr. How much does one cookie cost?
12kr
Calculate:
4x-3
-12
Multiply into the parenthesis:
5(x + 7)
5x + 35
How many sides does a cube have?
6 sides
How much is 100%, if 30kr is 1%?
3000kr
Calculate (-2) x (-2) x (-2)
-8
Multiply into the parenthesis and simply the expression:
14x - 6(x+1)
8x-6
You stand in a circular pool, how will you measure the diameter?
Calcualte the circumference, and then divide by pi
Jacob has 20% more cookies than Noel. Together they have 418 cookies. How many cookies does jacob have?
228 cookies.
Calculate:
0,52
0,25
Solve the equations:
18 = 26 + x
8 = x
The circumference of the equator is around 40000 km. Calculate the earth's radei.
6000km
What "förändringsfaktor" is an increase by 39% and 130%
1,39 and 2,00
Calculate:
-34
-81
Solve the eqaution:
5x/9 + 81 = 106
x=45
The minute hand of a clock is 21,5m long. How far does the hand move during 1 hour?
135m
Isak was 51cm when he was born. When he was 15 years old, his height had incresed by 174%. How tall was he then?
140cm.