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Thumbnail showing KJSEA 2025 Maths Question 26 on simultaneous equations for books and pens with worked elimination steps.
Grade 9 • Algebra

KJSEA 2025 Maths Q26 — Simultaneous Equations

Solve two simultaneous equations by elimination to find the cost of a book and a pen.

Number cards 2, 4, 5 and 9 with a question asking which set holds prime numbers only.
Grade 9 • Numbers

KJSEA 2025 Maths Q1: Prime Numbers

Which set has prime numbers only? Test 2, 4, 5 and 9 with the two-factor rule.

Thumbnail showing a cylindrical bucket of water with the surface area of a cylinder formula for KJSEA 2025 Maths Question 10.
Grade 9 • Measurement

KJSEA 2025 Maths Q10 — Cylinder Surface Area

Find the bucket surface touching the water: circular base plus curved wall, top left out.

Thumbnail showing a cuboid milk packet with dimensions and the KJSEA 2025 Maths Q11 capacity question
Grade 9 • Measurement

KJSEA 2025 Q11 — Capacity

Find the capacity of a cuboid milk packet in litres.

Video thumbnail showing the Kelvin to Celsius conversion for KJSEA 2025 Maths Question 12.
Grade 9 • Measurement

KJSEA 2025 Q12 — Kelvin to Celsius

Choose the calculation that converts a Kelvin reading to degrees Celsius.

Video thumbnail showing a mobile money charges table with the question about how much Loymer remained with after sending and withdrawing money.
Grade 9 • Numbers

Q13 — Mobile Money Charges

Work out the balance left after sending and withdrawing money plus charges.