Integer Subtraction Taking the minus out of subtraction

Integer Subtraction Taking the “minus” out of subtraction

Today’s Objective IWBAT subtract integers.

But first, let’s review!

The Integer Song

Adding Integers … In Context! If it were 110 degrees outside on Monday morning, and then got 34 more degrees hotter by noon, what would the new temperature be? 110 + 34 Man, it’s hot!!!

Adding Integers … In Context If it were -5 degrees outside on Monday morning and then got 7 degrees hotter by noon, what would the new temperature be? Brrrrr … it’s cold out there! -5 + 7

Adding Integers … In Context Once upon a time, in a far away land of Minnesota … If it were -15 degrees outside on Monday morning and then got 17 more degrees colder by noon, what would the new temperature be? -15 + -17

So what if I see subtraction?

But what is KCC? ?

Using the KCC Any subtraction _______ problem can be C ___. rewritten using the ___ K ___ C ______ KEEP the 5. Don’t do anything to it! CHANGE the “-” sign to an “+” sign. (In this case) CHANGE the “positive 7” to a “negative 7. ”

Solve the following problems using the KCC method. 1. 5 – 12 = 1. -5 – 12 = 2. 10 – 13 = 2. -7 – 11 = 3. 14 – 22 = 3. -4 – 12 = 4. 32 – 33 = 4. -3 – 24 =

Now try these out. Remember, we still use KCC whenever we see subtraction. 1. 5 – (-12) = 1. -5 – (-12) = 2. 10 – (-13) = 2. -7 – (-11) = 3. 14 – (-22) = 3. -4 – (-12) = 4. 32 – (-33) = 4. -3 – (-24) =