# File

advertisement ```Open your book to page 4
 Complete 1-6 on the Are You
Ready? section in your book.

Remember
to turn your
vocabulary into your class bin.
 LG
702: Students will be able to apply and
extend previous understandings of operations
to add and subtract rational numbers.
 LG
703: Apply and extend previous
understandings of operations to multiply and
divide rational numbers.
 Today
I am working with integers.
 So
that I can add integers with the same
or different signs.
 I’ll
know I’ve got it if I can accurately
solve the following expression.
37 + (-82)
Date
Lesson
Page #
8/24
Multiplication Table
1
8/24
Divisibility Rules
2
8/25
Adding Positive and Negative Integers
3
Unit
1
 Absolute
Value - The distance of a number
from zero on a number line. Absolute value
is always positive.
 Additive
Inverse – The opposite of a number.
The sum is always zero.
 Integer
– The set of whole numbers and their
opposites. … -3, -2, -1, 0, 1, 2, 3 …
You can use colored counters to add positive
integers and to add negative integers.
=1
= -1
3+4
How many counters are there in total?
We can use negative counters to add two
negative numbers.
-5 + (-3)
How many counters are there in total?
To add integers with the same sign, add the
absolute values of the integers and use the
sign of the integers for the sum.
Model 4 + (-3)
Model -7 + 5
You can use colored counters to model adding integers with different
signs. When you add a positive integer and a negative integer, the
result is 0. One red and one yellow counter form a zero pair.
=1
= -1
1 + (-1) = 0
Model 3 + (-2)
What is left when you remove the zero pairs?
Same signs add and keep,
Different signs subtract.
Then keep the sign of the larger number
And you will be exact.
Page
 Due
17, #16-25
at the start of next class
```