Question 2
Evaluate $1-2+3-4+5-6+\ldots+1999-2000$
PIMSO 2023 - Mathematics - Secondary 2 (Grade 8) - National Round Question 2
PIMSO Maths · PIMSO 2023 - Mathematics - Secondary 2 (Grade 8) - National Round
PIMSO Maths · PIMSO 2023 - Mathematics - Secondary 2 (Grade 8) - National Round