Pre-Algebra chapter 6 Review

Addition/subtraction

100

-3.5+2.1

-1.4

200

1/4-3/4

-1/2 or -0.5

300

-2.75+1.5-0.25

-1.5

400

-5/8+3/4-1/2

-3/8 or -0.375

500

2.3+(-1.7)-0.8

-0.2

multiplication/division

100

4(-0.5)

-2

200

(-2/3)/(1/2)

-4/3 or -1 1/3

300

(-1.2) x (-0.5) / 0.2

3

400

-3/4 / (-2/3) x 1/2

1/2 or .5

500

(-2.5) x 0.4 / (-1/2)

2.5

scientific notation

100

0.00045 in scientific notation

4.5 x 10^-4

200

3.2 x 10^5 in standard form

320,000

300

(2 x 10^3) * (3 x 10^2)

 6 x 10^5

400

(8 x 10^6) /(2 x 10^2)

-18

500

5.6 x 10^4 / 1.4 x 10 ^6

400

mixed review

100

-4/ 2*(-3)

-10

200

1/2 /(3/4) / (.5)

2

300

(-2)^3 / 5 x (-2)

-18

400

3.6 /0.6 -2 *(-1.5)

9

500

4/5 -2/3 * 3/4 / .5

1