Use this ZIMSEC O-Level Mathematics Paper 1 November 2021 marking scheme for checking answers, revision, and exam preparation in Zimbabwe.
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Questions: ZIMSEC O-Level Mathematics Paper 1 November 2021 Question Paper
This is the ZIMSEC O-Level Mathematics marking scheme for Paper 1 from November 2021. It shows how marks are awarded, so you can mark your own answers to the matching question paper. See the question paper.
prepared by the Math Doctor Sir Busayi
November 2021-Paper 1 0780576282
1(a) 30,1 (b) 30,10 (c) $3,0098 \times 10^{1}$
2 (a) $4, \overline{6}$ or $4, \overline{6}$
(b)
\[
\begin{aligned} | 10-(10 \div 2)+(2 \times 2)
= | 10-5+4
= | 9
\end{aligned}
\]
3(a) 17
(b) $\frac{20-8}{20+8}=\frac{r z^{3}}{28_{7}}=\frac{3}{7}$
4 (a) (i) 17 and 19
(ii) Eight hundred and one thousand and eight
(b)
\[
\begin{aligned}
6,65 \text { hours } | =6 \text { hours }+0,65 \text { hours } | =6 \text { hours }+(0,65 \times 60) \text { minutes } | =6 \text { hours } 39 \text { minutes }
\end{aligned}
\]
$S$ (a) 1,2 and 3
(b)
2 | 270
3 | 135
3 | 45
3 | 15
5 | 5 | 1
\[
270=2 \times 3^{3} \times 5
\]
6 (a)
Bearng of $Q$ from $P$ is $180^{\circ}+054^{\circ}$
\[
234^{\circ}
\]