Unit 2 - Real Numbers

+ and - Integers

100

-6+14

8

200

8-(-98)

106

300

-35+20-12+1

-26

400

-1+3-4+2-7+10-20+35-4

14

500

An investor owns shares in a tech company. On Monday, the total value of the shares dropped by $72. Over the next 6 days, the stock dropped an additional $15 each day. On Saturday, the value grew by half. What was the total change in the portfolio's value by the end of the week?

$-81

x and / Integers

100

-98/-7

14

200

-(-7^2)

-49

300

|2*-8*-1*3*(-2)|

96

400

6/3x(-7)-60

-74

500

89-(-3)^2[5*9-40]

134

+ and - Rational Numbers

100

3/2+7/2

5

200

10/3+12/7

5 1/21

300

-5/9-23/18

-11/6

400

58+5/10-(-58)

233/2

500

1/5-263/265+3/53

-39/53

x and / Rational Numbers

100

7/4*9/3

5 1/4

200

5/18/28/13

65/504

300

21/3*8-13

43

400

12-3[2*10/9+(8-7)]

61/3

500

(3/5)^2*2/3/4/5

3/10

Rounding and Real Numbers

100

Round to the nearest ten million 

39,274,928,475,028,487.02894

39,274,928,480,000,000

200

What type of number is  5/(7pi) 

Irrational

300

Round −12.438 to the nearest hundredth

-12.44

400

Round 385,029.740263 to the nearest:

ten thousandth

thousand

integer

385,029.7403

385,000

385,030

500

Define what numbers are considered Natural, Whole, Irrational, Rational, and Integers

Natural numbers are positive whole numbers

Whole numbers include natural numbers plus 0

Irrational numbers are numbers that can't be written as a terminating or repeating decimal

Rational numbers can be written as fractions and have a repeating or terminating decimal

Integers are positive and negative whole numbers