Math 7 - Real Numbers and Exponents

Fix It

100

(5-2) + 12 - 5 

   7 + 12 - 5

  19 - 5 

  14

5-2 = 3 

200

(23-3²)+ |-5|=9

19

300

√36 -|2+12|=20

8

400

(5x³-3x²)=8x⁶ 

15x⁵

500

(7³ / 7⁵)⁶= 7⁹

7^-12 or 1/7¹²

Laws of Exponents

100

8^-3 x 8⁶ =

8³ 

200

(2⁴ + 2^-6)/2⁸

2^-6 or 1/2⁶

300

(5⁶/5⁵)/5⁰=

5⁶/5⁵ = 5

5/1 = 5

400

(4 x 2⁵)/((19-4²)+1)

32

500

(√ (√ 81 + 3³))/(2³ X 2^-2)

6/3 = 2

Cool Conversions

100

5.34 x 10^-6=

0.00000534

200

5^-2= 

1/25 or 0.04

300

Rewrite 182,800,000 in Scientific Notation.

1.828 x 10⁸

400

Is 36.7 x 10^-4 the correct way to represent 0.00367 in Scientific Notation? Why or why not?

No because numbers in SN only have one significant digit. The correct form would be 3.67 x 10^-3.

500

Which digits in 36,204,000 should be included after the decimal point when you rewrite this number in Scientific Notation?

6,2, 0, and 4.

Estimate/Explain

100

Name the two integers that √ 45 is between  

6 and 7

200

What is the approximate square root of 112, rounded to the nearest tenth?

10.4-10.6

300

Why can't you simplify 7x² + 6y4?

They have different variables.

400

Estimate the square root of 38.

6.1-6.2

500

(120+45)-65-23=

87

Absolute Value

100

|-12| - |-15| = 

3

200

-|2² + 2³| + 12 =

4

300

(23+3)-15+5

16

400

56-4-34

18

500

(23+89)-67+12

47