Quiz for grade 8

  $Evaluate\ :\ 55−(1+4)×4$  

Which of the following is the expanded form of $5𝑥(3𝑥+10𝑦)$  

Fully factorise the following expression.  $8𝑦z^2−16𝑦^3$  

Which decimal describes the shaded part of this shape?

Which of the following line is parallel to $𝑦=3𝑥+4$  

Simplify the expression  $x^2×𝑥^8$  

Simplify the expression  $\left(𝑦^2\right)^8$  

In a class of 42 students, the ratio of male : female is 2 ∶ 4. How many females are there?

Write the number 742,000 in standard form.

 $6.3×10^{-3}$ 
write as an ordinary number