# Section 5-4 Fractions and decimals pages 210 - 213 Standard: Number Sense and Operation Indicator: N7 (5-3) and N3: Show rational numbers can be expressed.

## Presentation on theme: "Section 5-4 Fractions and decimals pages 210 - 213 Standard: Number Sense and Operation Indicator: N7 (5-3) and N3: Show rational numbers can be expressed."— Presentation transcript:

Section 5-4 Fractions and decimals pages 210 - 213 Standard: Number Sense and Operation Indicator: N7 (5-3) and N3: Show rational numbers can be expressed as terminating or repeating decimals

Terminating (ending) Decimals  1/4 means 1÷ 4 = 0.25  5/32 means 5 ÷ 32 = 0.15625

Repeating Decimals (use bar notation)  1 1 1 1/3 means 1÷ 3 = 0.3333… = 0.3 8888 1/33 means 8 + (1 ÷ 33) = 8 +.0303… =8.03

Write a fraction from a decimal (Use placevalue foldable) WWWWrite the decimal part as a fraction out of 10, 100,1000,10000, etc. Then simplify 0000.23 = 2 23 100 (simplified) 3333.8 = 3 + 8 10 8 = 2*2*2 = 4 s so 3.8 = 3 4 10 2*5 5 5

Calculator Keys  Press decimal value3.8  Press 2’nd button  Press PRB (F D)  Press Enter =

 5-4/ 212 – 213/ 14 – 42 e, 47-50,54-57  On 49 & 50 show the ratio of prime factors  Quiz Tomorrow!!

Similar presentations