Question 1 The expression, -3 + 5 - 10, is written using flat notation. Write the expression using brackets notation.
Question 2 What number does the expression, -10 + 3 - 5 - 3 + 2, work out to be?
Question 3
Explain, by using the gain and loss model (involving the context of temperature), why 3 - 10 = -7.