Exponent and Scientific notation REVEIW

Standard notations

100

The population of Queens is 2 million. Write it as a scientific notation

2x10⁶

200

Adeeb writes 0.00436 as 4.36x10³. Is he correct? If not, how would you fix it?

4.36x10^-3

300

Aggie thinks that 0.0000032 will have a positive exponent. Do you agree? Rewrite if you disagree

3.2x10^-6

400

Which number is greater?

6x10^-6

2x10^-8

6x10^-6

500

Is 32x10^-5 in scientific notation? If not, rewrite 

3.2x10^-4

Exponents

100

Rewrite x^-2 using a positive exponent

1/x²

200

Simplify (3^-4)^-1 completely

81

300

Simplify 5⁵÷5^-2

5⁷

400

Christos thinks that (5²)³ is 5⁵. Do you agree? 

If not, name the property you use to find the correct answer

No we disagree he should have use the power rule and multiply the exponents

500

Power rule of exponent:

When you have an exponent raised to a power, _____ the base and ______ the exponents

Keep; multiply

Operations

100

(4.7x10²)+(1.3x10²)

6x10²

200

(6.42x10⁵)÷(2x10³)

3.21x10²

300

Katerina says that the product of 4.8x10⁸ and 2x10^-3 is 9.6x10^5. Is she correct? Name the property that can be used here

Yes; Product rule of exponents

400

There are about 3x10³ students attending Mamie Fay.

 If there are 2.6x10² in class 402, find the number of students who are NOT in class 402. 

2.74x10³

500

(3x10²)(5x10ⁿ)=1.5x10⁷ 

4

Random math

100

Simplify for x=10.

x³+2x²+3x+9

1239

200

Iris and Audrey are multiplying 2⁴ and 2⁵. 

Iris got 10²⁰ and Audrey got 2⁹. Who is correct? Name the property you need to use to multiply powers

Audrey; Product Property

300

is 1.232332333... a rational number? Explain

No because non-repeating and non-terminating decimals are irrational

400

Is 0÷45 a rational number

Yes because it's 0

500

If there are 1x10² students in 7th grade, and there are about 2x10³ students in PS122, what is the percent of 7th grade students at 122?

5%

Extras

100

What color is Ms. Kim's dog?

White

200

What shape is a stop sign?

Octagon

300

When was PS122 found

1925

400

Spell Ms. Kim's first name

Eunhee

500

What is a bean-shaped organelles that use glucose and oxygen molecules to release energy that the cell can use?

Mitochondria