unit 3 haley parnham mat farley jenna hoffmire. objective 1: to perform operations and simplify...

Unit 3

Haley ParnhamMat Farley

Jenna Hoffmire

Objective 1: To perform operations and simplify expressions involving powers of 10

• Sample:

• Practice:

1210

22

5

1

1010

10

10

10

936 1010·10 624 101010

3621

153

7

5

1010

10

10

10

Objective 2: Write numbers in decimal notation in Scientific Notation

• Sample Problem:• Example Problem 1: • Example Problem 2:• Example Problem 3:

91012.4000,000,120,4 71013005.6500,300,61

141034.7000,000,000,000,734

9101364.5000,400,136,5

Objective 3-Write numbers in Scientific Notation in decimal notation

00732.01032.7 3

Since the exponent is a negative number I went 3 places to the left from the decimal.

420,3102.34 2 Since the exponent is a positive you move 2 places to the right.

0065.105.6 3

082745.1045.827 4

Objective 4: Convert within units in the Customary System of Measurement

• Sample: 0.356 miles= ___feet 0.356 miles= 1879.68 ft.

• Practice:43 fluid ounces= ___ pints

43 fl oz= 2.69 pt

106 ft= ___yd106 ft= 35.3 yd

8500 lb= ___tons8500 lb= 4.25 tons

Objective 5: Convert within units in the Metric System of Measurement.• Sample Problem:

• Example Problem 1:• Example Problem 2:• Example Problem 3:

mgg

mgg

56006.5

560010006.5

_____6.5

mLL 000,304,6161304

kmm 24.11112400

LmL 24.33240

Objective 6-Determine the appropriate unit of measure for a specific object

Sample Problem: Best metric for measuring the height of the door - Meters

Morton to Bahamas - Km

Length of football field – M

Thickness of a cheerio - mm

Objective 7: Convert area and volume within the Metric System of Measurement

• Sample: 325,000 cm = 0.325m

• Practice:change 2.5 L to mL= 2500mL

change 5.2 cm to mm = 5200mm

change 12.3 mm to cm = 0.0123 cm

33 3

3 3

33

3

3

Objective 8: Convert time.

• Sample Problem: How many seconds are in 3 days, 8 hours, 21 minutes, and 42 seconds.

60 seconds in one minute.

1200 seconds in one hour.

38800 seconds in one day.

12006060

38800241200

seconds. 1273024212609600116400

12602160

960081200

116400338800

Objective 8 continued.

Example Problem 1: How many seconds are in 4 days, 3 hours, 13 minutes, and 53 seconds?

Answer: 159633 seconds.Example Problem 2: How many seconds are in 1

day, 1 hour, 1 minute, and 1 second?Answer: 40061 seconds.

Example Problem 3: How many seconds are in 4 days, 3 hours, 2 minutes, and 1 second?

Answer: 158921 seconds.

Objective 9-Convert Temperatures

• Sample Problem: 10°C = 50°F• C= (F – 32°) F = C + 32°

• F = + 32 F = • F = F =

= 18° + 32 = = 50 ° = 89.6 ° F

9

55

9

c5

9

32)10(5

9

325

9c

32)32(5

9

326.57

)32(9

5 Fc

)3275(9

5c

)43(9

5

24