Topic: Rational Numbers
HF 127 & 128
Page 10
L2.3 p.60
Level: Apply
Do: Subtract Rational Numbers using rules of integers.
Essential Question: How can you use what you know about
subtracting integers to subtract rational numbers?
Questions:
Notes on Subtracting Rational Numbers; “Key Idea” top p.60
When subtracting rational numbers, use the
same rules for signs as you used for ___________
and it is best to use common denominators.
A) Subtracting Rational Numbers (Fractions)
Questions:
2
3
When subtracting decimals, you must line up the decimal to
ensure subtracting proper place values.
B) Subtracting Rational Numbers (Decimals)
4
5
6
Questions:
C) Finding the Distance Between Numbers on a Number Line
When finding the distance between numbers,
find the _____________ between the numbers.
In-other-words, _____________ the lesser
number from the greater number.
.
8
.
Questions:
D) Real-Life Application
You have $101.62 in your savings account. You withdrawal $45.41 to
pay your cell phone bill. Do you have enough money left to buy a
video game that costs $56.25?
If yes, how much extra $$$ do you have?
If not, how much more $$$ do you need?
Summary: