Friday, Nov 8 Lesson 5.4 Terminating and Repeating
Decimals
Slide 21
Objective: To express positive and negative fractions as
decimals.
Slide 22
Terminating and Repeating Decimals At the end of this lesson
you should be able to answer the following question. How are
repeating decimals used in real world situations?
Slide 23
Terminating and Repeating Decimals A Rational Number is any
number that can be written as a fraction. That means it can be
written as a fraction, in which both the numerator and the
denominator are whole numbers.
Slide 24
Terminating and Repeating Decimals
Slide 25
Non-rational numbers are called irrational. Do you know an
irrational number? A number that cannot be expressed as a
fraction?
Slide 26
Terminating and Repeating Decimals Non-rational numbers are
called irrational. Do you know an irrational number?
Slide 27
Terminating and Repeating Decimals Bar notation is a bar placed
over the digit(s) that repeat. example 0.54545454 = 0.54
Slide 28
Terminating and Repeating Decimals 5 Write 12 as a decimal. How
do you set this up as a math problem?
Slide 29
Terminating and Repeating Decimals 5 Write 12 as a decimal. 12
) 5 or 5 12 What is it as a decimal?
Slide 30
Terminating and Repeating Decimals 5 Write 12 as a decimal.
0.416 0.4166 12 ) 5.0000 -48 20 -12 80 -72 80 -72 8
Slide 31
Terminating and Repeating Decimals 1 Write 6 as a decimal.
Slide 32
Terminating and Repeating Decimals 1 Write 6 as a decimal. 0.16
0.166 6)1.000 -6 40 -36 40
Slide 33
Terminating and Repeating Decimals 2 Write - 9 as a
decimal.
Slide 34
Terminating and Repeating Decimals 2 Write - 9 as a decimal. We
can remove the negative sign to divide and re-attach it at the
end.
Slide 35
Terminating and Repeating Decimals 2 Write - 9 as a decimal. -
0.2 0.22 9)2.00 -18 20 -18 2
Slide 36
Terminating and Repeating Decimals 2 Write - 2 3 as a
decimal.
Slide 37
Terminating and Repeating Decimals 2 Write - 2 3 as a decimal.
We can remove the negative sign and whole number to divide and
re-attach them at the end.
Slide 38
Terminating and Repeating Decimals 2 Write - 2 3 as a decimal.
- 2.6
Slide 39
Terminating and Repeating Decimals Frank made 34 out of 44 free
throws this season. What is his free throw percentage? Do this on
your own.
Slide 40
Terminating and Repeating Decimals Frank made 34 out of 44 free
throws this season. What is his free throw percentage? 00.7727 Here
is the decimal, what is the percentage? 44 )34.00000 -308 320 -308
120 -88 320 -308 120
Slide 41
Terminating and Repeating Decimals Frank made 34 out of 44 free
throws this season. What is his free throw percentage? 00.7727 Here
is the decimal, what is the percentage? 44 )34.00000 -308 320 -308
120 -88 320 -308 120 77.27%
Slide 42
Terminating and Repeating Decimals How are repeating decimals
used in real world situations?
Slide 43
Terminating and Repeating Decimals Agenda Notes Homework No
Homework Chapter 5 Test Friday, Nov 15