Skip to main content

Select language

Grades
/
Grade 11
/
Mathematics
/
Sequences & Series
/
Practice

Practice: Sequences & Series

Question 1 of 5Your Score: 0/0

Find the sum of the first 20 terms of the arithmetic sequence where a = 3 and d = 5.

🤟DeafEd SA

Practice at home, on your own time. CAPS-aligned lessons with South African Sign Language translation for Grades R–12.

About DeafEd SA

DeafEd SA provides free, CAPS-aligned academic support with South African Sign Language translation. Built for every deaf learner in South Africa.

Powered by SASL

South African Sign Language is South Africa's 12th official language. SASL is a complete, natural language with its own grammar and vocabulary.

© 2026 DeafEd SA. Built for every deaf learner in South Africa.