Unit 7 - Lesson 9

Match each number to its name.

Write each expression as a multiple of a power of 10:

42,300

Write each expression as a multiple of a power of 10:

2,000

Write each expression as a multiple of a power of 10:

9,200,000

Write each expression as a multiple of a power of 10:

Four thousand

Write each expression as a multiple of a power of 10:

80 million

Write each expression as a multiple of a power of 10:

32 billion

Each statement contains a quantity. Rewrite each quantity using a power of 10.

There are about 37 trillion cells in the average human body.

Each statement contains a quantity. Rewrite each quantity using a power of 10.

The Milky Way contains about 300 billion stars.

Each statement contains a quantity. Rewrite each quantity using a power of 10.

A sharp knife is 23 millionths of a meter thick at its tip.

Each statement contains a quantity. Rewrite each quantity using a power of 10.

The wall of a certain cell in a plant is 4 nanometers thick. (A nanometer is one billionth of a meter.)

A fully inflated basketball has a radius of 12 cm. Your basketball is only inflated halfway. How many more cubic centimeters of air does your ball need to fully inflate? 

Estimate how many cubic centimeters this is by using 3.14 to approximate π. (Estimate to the nearest hundredth.)

SKIP

Solve each of these equations.

2(3-2c)=30

Solve each of these equations.

3x-2=7-6x

Solve each of these equations.

31=5(b-2)

Graph the line going through (-6,1) with a slope of \frac{-2}{3} and write its equation.