Arithmetic mixed questions

Which formula can be used to determine the area of a triangle?

• A = l w

• A = b h

• A =  $\pi$   $r^2$  

• A =  $\frac{1}{2}$  b h

Which formula can be used to determine the perimeter of a rectangle?

• P = 4 $\times$ s

• P = a + b + c

• P = (2 $\times$ L) + (2 $\times$ W)

• P = L $\times$ W

Which formula is used to determine the perimeter of a square?

• p = (2 $\times$ L) + (2 $\times$ W)

• P = 4 S

• P = a + b + c

• P = L $\times$ W

Find the sum of 2.006, 108.2, 16.34 and 9

• 127.446

• 135.546

• 126.636

• 216.546

what is the Highest Common Factor of 12 and 84?

• 2

• 6

• 12

• 84

What is the place value of the 2 in 12 345

• ten thousand

• two hundred

• thousand

• two thousand

38 - 1.275 is

• 36.725

• 37.725

• 37.275

• 37.005

Which algebraic equation best describes the mathematical sentence: Two times y decreased 12 is equal to 4.

• 2 (y - 4) = 12

• 2 y - 12 = 4

• 2 y + 4 = 12

• 2 y (y - 4) = 12

If  $\frac{X}{100}$  = 42.7 what is X ?

• 0.427

• 4.27

• 427

• 4, 270

If X + 13 = 13 + (5 $\times$  3)

• 3

• 5

• 13

• 15