Grade 12 · week 46, 9 to 13 November 2026

Grade 12 weekly pack, week 46 of 2026

Five worksheets for Monday to Friday, 15 questions each, with answer keys. Print one day at a time or the whole week with a cover page.

The five days

Monday

15 questions

Find the sum of the first 11 terms of an arithmetic sequence with first term 25 and common difference 2.
Find the sum of the first 6 terms of a geometric sequence with first term 3 and ratio 3.

Tuesday

15 questions

Writing and argument: which term fits this description? Wording that appropriately limits the scope or certainty of a claim.
Which bibliography detail helps readers locate a source?

Wednesday

15 questions

An optical image has magnification magnitude 0.6. The object height is 11 mm. Find image height magnitude. Round to 3 decimal places if needed. Answer in mm.
A thin converging lens has focal length +11 cm. A real object is 69 cm from it, beyond the focal point. Using 1/f = 1/do + 1/di, find real image distance. Round to 3 decimal places if needed. Answer in cm.

Thursday

15 questions

Find the population variance of 40, 46, 52, 58, 64. Divide by 5.
A score of 9 occurs 9 times; a score of 26 occurs 2 times. Find the mean as a fraction or decimal.

Friday

15 questions · Sequences & series, Creative writing, Light & optics, Statistics & probability

Data: 22, 26, 30, 34, 38, 42, 46, 50. Using medians of the lower four and upper four values, find the interquartile range.
Find the population variance of -1, 6, 13, 20, 27. Divide by 5.

Lesson of the week

From the study guide Finite geometric sums

Study guide for Grades 10 to 12: 2 worked examples and 2 practice questions. Use n terms, starting with the first term a.

Sₙ = a(rⁿ − 1)/(r − 1), r ≠ 1
Use n terms, starting with the first term a.
Example: Find the sum of the first 4 terms of a geometric sequence with first term 4 and ratio 4. Answer: 340.