Algebra
Powers of Ten
%, fractions, decimals
Unit Price
Riddles
100

Which signs do we NOT use in algebra

"x" and "÷"
100

When we multiply by powers of 10, which way do we move the decimal point?

to the right

100

Percentages, Decimals, and Fractions, are all ______ of a whole number

parts

100

When we calculate the unit price, we are finding the cost of how many of that item?

One

100

What gets wetter the more it dries?

A towel

200

SIMPLIFY this expression

-4(5x + 8)

-20x - 32

200
When we multiply and divide by powers of 10, how do we know how many places to move the decimal point?

by the number of zeroes

200

How do we convert a fraction to a decimal?

divide the numerator (top number) by the denominator (bottom number)

200
What is the unit price of 3 bananas for $1.29?



.43

200

A one floor house is painted yellow, has yellow walls, yellow carpet, yellow furniture, etc.  What color are the stairs?

There are no stairs in a one room house

300

solve for x

x/8 - 4 = -8

x = -32

300

What is 3.14298 x 1000

3142.98

300

Convert 9% to a decimal

.09

300

Which is the better buy?

5 cans of soup for $3.05

3 cans of soup for $1.86

5 cans of soup for $3.05 - $0.61 per can

300

What are two things you can NEVER eat for breakfast?

lunch and dinner

400

Solve for x 

-5(x + 4) = -10

x = -2

400

What is 32.9 ÷ 1000

.0329

400

Convert .6 to a percentage

60%

400

If 4 DVDs cost $26.20, how much would 9 DVDs cost?

$58.95

400

What has four legs but can't walk

A table

500

Write an equation for the following word problem.

Sam buys x number of video games at $20 per game.  He also buy a controller for $30.  His total is $200.

20x + 30 = 200

500

(.5 x 100) + (50 ÷ 10)

55

500

Convert 7% to a decimal and fraction

.07 & 7/100

500

At the fidget store, you can buy 7 fidgets for $2.10.

Beth buys 5 fidgets and Dan buy 8 fidgets.

How much did they spend in total on fidgets?


$3.90
500

What goes up but never comes down?

Your age

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