Use this ZIMSEC O-Level Mathematics Paper 1 November 2022 marking scheme for checking answers, revision, and exam preparation in Zimbabwe.
A free account is needed to download. Sign in or create one
Questions: ZIMSEC O-Level Mathematics Paper 1 November 2022 Question Paper
This is the ZIMSEC O-Level Mathematics marking scheme for Paper 1 from November 2022. It shows how marks are awarded, so you can mark your own answers to the matching question paper. See the question paper.
November 2022 - Paper 1
(a) 1000001
(b)
\[
\begin{aligned}
1 \frac{2}{4} \text { days } | =1 \text { day }+\frac{3}{4} \text { day } | =24 \text { hours }+\left(\frac{3}{4} \times 24\right) \text { hours } | =24+18 | =42 \text { hours }
\end{aligned}
\]
(c)
\[
\begin{aligned}
11,6^{\circ} | =11^{\circ}+0,6^{0} \quad\left(1^{\circ}=60^{\prime}\right) | =11^{\circ}+(0,6 \times 60)^{\prime} | =11^{\circ} 36^{\prime}
\end{aligned}
\]
2 (a)
\[
\begin{aligned}
13 x | =377
\frac{13 x}{13} | =\frac{377}{13}
x | =29
\end{aligned}
\]
(b)
\[
\begin{aligned}
a+\binom{3}{4} | =\left(\begin{array}{l}
5
0
5
0
\end{array}\right)-\binom{3}{4}
a | =\binom{2}{-4}
\end{aligned}
\]
(c) 16
3(a) $045^{\circ}$
(b) $1,3,5$
(c) 0,05
(a)
\[
\begin{aligned}
\left(\frac{7}{8}\right)^{-1} | =\left(\frac{8}{7}\right)^{1} | =\frac{8}{7} | =1 \frac{1}{7}
\end{aligned}
\]
(b) $\log _{5} 80-\log _{5} 16$
Remember!
1) $\log M-\log N=\log \frac{M}{N}$
2) $\log _{x} x=1$