Use these answers to find a rule for 3 + -1, 3 + -2, way of abbreviating … (i.e. Find another writing 3 + -1 so that you get the right answer without drawing a diagram.) 3. Repeat the exercise for 4 2 = 2, 4 1 = 3, 4 0 = 4, and extend the pattern to find answers – – – for 4 -1, 4 -2, 4 -3. – – – Find a rule for abbreviating 4 -2. – You should have found two rules. One for adding a negative number and one for subtracting a negative number. Use these to find: 2 + 4 5 + -1 -4 -2 – 9 2 14 + -3 -8 -7 – – Try and find the correct answers for these. Explain your reasoning. 3 + 4 + -5 -9 -2 -3 – + 9 + -3 -2 -15 -4 -5 –
Use these answers to find a rule for abbreviating 3 + -1, 3 + -2, … (i.e. Find another way of writing 3 + -1 so that you get the right answer without drawing a diagram.) 3. Repeat the exercise for 4 – 2 = 2, 4 – 1 = 3, 4 – 0 = 4, and extend the pattern to find answers for 4 – -1, 4 – -2, 4 – -3. Find a rule for abbreviating 4 – -2. You should have found two rules. One for adding a negative number and one for subtracting a negative number. Use these to find: 2 + -1 9 – -3 4 – -4 2 – -8 5 + -2 14 + -7 Try and find the correct answers for these. Explain your reasoning. 3 + -5 -3 + -2 4 + -9 9 + -15 -2 – -3 -4 – -5
add_subtract_negatives.docx