Area/Volume
Area of rectangle if length is 8cm and width is 6cm
48cm2
What is x3 multiplied by x7
x10
What is 4x + 2 + 3x
7x + 2
Add 22% on to the number 400.
488
Find the mode of the following numbers:
1, 2, 3, 4, 4, 5, 6, 7
Mode = 4 (Most common number)
Perimeter of a square with side lengths 7cm.
28cm2
What is x13 divided by x8
x5 (Minus the powers)
What have I done (one word) to go from x2 - 4x to x(x-4)
Factorise
If €1 = £0.9. Convert €200 to £
£180
Find the median of the following numbers 4, 5 , 6, 7, 8, 10, 13, 15, 19
8 (The middle number)
Find the volume of a cylinder with radius 8cm and height 10cm in terms of pi.
640pi cm3
What is (x5)6
x30
Solve: 3x + 5 = 35
x = 10
If €1 = £0.9. Convert £300 to €
€333.33
Find the Mean of the following numbers: 3, 4, 5, 6, 7, 9, 10, 13, 15
8 (add them all up and divide by 9)
Find the volume of a HEMIsphere if the radius is 3 (in terms of pi)
volume = 18pi (1/2 of 4/3 pi r3)
Convert 4,000,000,000 into scientific notation
4 x 109
Solve 4(x - 4) = 3(x + 3) - 21
x = 0
Use the compound interest formula to find the final value of €4000 invested for 5 years at 3% interest.
F = P( 1 + i )t
€4,637.1
What type of chart is best to show the following data:
23, 24, 25, 34, 36, 36, 45, 47, 48, 50, 52, 53
Stem and Leaf
Height = 5
Convert 2,637,400,000,000 into scientific notation
2.6374 x 1012
Factorise x2 + 14x - 32
( x + 16 )( x - 2 )
Work out the take-home-pay if Tom earns €67,000 and is taxed at 20% up to €50,000 and 40% for the balance. Assume tax credits of €4,000
€54,200 ---- Lower rate (10,000) ---Higher rate (6,800)
If the mean is 6. Find x.
2, x, 9, 1, 4, 6, 7, 10
x = 9