7P – Math lesson             Wednesday, November 3, 2021

Good morning class.

Today we will be covering a new concept: subtracting integers on a number line. The method to answer these questions is the same as when we added integers on a number line. You draw your line for the first number in the equation, and then draw your line for the second number.

We will be working from the textbook today. I have attached page 73 from the textbook; please study the two examples inside the red box – these are two questions that are worked out for you – as you will be doing the same thing when you answer your own questions.

After looking closely at those two examples, try question # 1 at the bottom of that same page. The second photo I attached is of part 1 a) worked out for you. These questions are asking you to use a number line like in the examples, but to then check your answers using tiles to subtract. Please look at how I did part (a), and then do # 1 b), c), d), e) and f).

Then have a look at the last photo (from page 74), and try #3 and #4. In #3, you are just using a number line to subtract – you don’t need to check your answer using tiles. In number 4, you are just “adding the opposite” to find the answer – the same type of question we did yesterday (no number lines).

Good Luck! Please take your time and consult the example in the photos below.