Mathematics

Find the H.C.F OF 49 and 63

• 7

• 49

• 35

Find the L.C.M of 3 and 5

• 3

• 5

• 15

The first 5 multiples of 8 are

• 1,2,3,4, and 12

• 8,16,24,32 and 40

• 1,2,4,6 and 8

Simplify -40x20

• -800

• -8

• 8

Work out the following; 6x2+4x3

• 54

• 108

• 24

Work out the following; 16÷(2+2)²+8

• 1

• 9

• 8

Write an expression for the perimeter of a rectangle with length n+2 and breadth n

• 2n+2

• 4n+4

• 4n+8

Write an expression for the perimeter of an equilateral triangle with base length ,y

• 3y

• 3y/2

• 2y/2

Work out the expression below when a=3,b=4 and c=5;

2a+3b-c

Using the formula P=2L+2b, calculate the perimeter of a rectangle with L=3cm and b=5cm