SASMO 2027 · Grades 2-3 · SET 002 · Self-study Question 3

Compute both expressions.

(a) 10 + 20 + 30 + 40 + 50 + 40 + 30 + 20 + 10

(b) 100 − 98 + 98 − 96 + 96 − 94 + ... + 6 − 4 + 4 − 2

Enter the answers to (a), (b), separated by a semicolon.