Question
Write '+' or '-' in the circles for the 2 letters. Give your answers by using the symbols in the symbol box.
  1. N
  2. P
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Write '+' or '-' in the circles for the 2 letters. Give your answers by using the symbols in the symbol box.
  1. N
  2. P