Algebra
3x + 5x
8x
18 divided by 3
6
How many centimeters are in one meter?
100
Reduce 6/12
1/2
Sarah buys 3 pens at $200. How much does she spend?
$600
Solve for x
x + 7 = 15
x=8
52 + 4
29
If 1km= 1000meters. Convert 2.5 km to meters.
2500 meters
Solve 3/7 + 2/7
5/7
A number multiplied by by 4 gives 28. Find the number.
7
Simplify 4( x +3)
4x +12
36 x 3
108
Find the perimeter of a rectangle with length 8 cm and width 5 cm
26 cm
Multiply 2/3 x 3/5
Give answer in lowest form.
2/5
A rope is 20m long. How much remains if 3m is cut off from both ends.
14m
Solve for x
3x-5= 16
7
23 x 5
40
Find the area of a triangle with base 10cm and height 6cm
30cm2
Divide 4/5 ÷ 2/3
6/5 or 1 1/5
A book cost $1500. How much will a student pay if they are given a 10% discount.
$1350
Factorise completely
x2 - 9
(x-3) (x+3)
48 ÷ (4 x 3)
4
A rectangular field is 12m long and 7m wide. Find its area.
84m2
Simplify 3/4 - 1/6
7/12
A rectangle has a length of 10cm and a width of x cm. If the perimeter is 30 cm, find the value of x.
x= 5 cm