(a)[2]
List every factor of 68.
(b(i))[1]
7+3\times5-1=19
(b(ii))[1]
$12+16\div2+5=19$
(c(i))[1]
the reciprocal of $\frac{2}{7}$
(c(ii))[1]
the value of $10^0$
(d(i))[1]
$3^2+3^4$
(d(ii))[1]
$\sqrt{3}\times\sqrt{12}$
(d(iii))[1]
$5^{-3}$
(e)[2]
Arrange these numbers from smallest to largest: $\sqrt{10}$, $3.142$, $1.8^2$, $\pi$, $\frac{22}{7}$.
(f)[2]
$\dfrac{136+47.2}{62.9\div18.1}$
(g)[1]
Write $4.73 \times 10^6$ in ordinary number form.
(h)[1]
Write down any prime number between 30 and 40.