Lessons 6-10 Review

Scientific Notation

100

Our decimal must be greater than or equal to _____ but also, less than _______

1. 1

2. 10

200

This is the exponent when the zeros are in front of the number

Negative

300

260 written in scientific notation

2.6 x 10²

400

.0000034 written in scientific notation

3.4 x 10^-6

500

Is 4.9 x 10⁵ in standard form 4,900,000

No

4.9 x 10⁵ is 490,000

Operations with Scientific Notation

100

When we divide do we put the top of the fraction into the calculator first or second?

First

200

(6.8 x 10⁶) + (3.4 x 10⁶)=

1.02 x 10⁷

300

(5.2 x 10^-3) ÷ (2 x 10^-2)=

2.6 x 10^-1

400

(5 x 10^-3) (7 x 10^-2)=

3.5 x 10^-4

500

6.8 x 10⁵ = (1 x 10²) (6.8 x 10ⁿ) what is the value of n?

n=3

Estimating with Powers of 10

100

Before I multiply by 10 I have to:

a. round

b. subtract

c. multiply

a. round

200

What is 5600 rounded?

6000

300

Estimate the number 0.00004321

4 x 10^-5

400

Estimate 0.065389271

7 x 10^-2

500

The populations of Cities A and B are 2.6 x 10⁵ and 1,560,000 respectively. The population of City C is twice the population of City B.

The population of City C is how many times the population of City A?

12 times

Exponent Rules

100

6⁰ = 

1

200

(x²)(x³)=

x⁵

300

5¹⁸ ÷ 5¹²=

5⁶

400

(4²)²=

4⁴

500

(12³)(3³)=

36³

Random

100

Is .36363636.... rational or irrational?

rational

200

x³=2197

x=13

300

3^-5=

1/3⁵

400

Is 0 a whole number or natural number?

Whole number

500

2³ ÷ 2⁵= 

(write in fraction form)

1/2^-2