Riddles
Math Riddles
Unit Rates
Ratios
Integers
100

It goes up and down the stairs without moving.

Carpet 

100

If you divide thirty by half and add ten, what do you get?

70

100

What is the unit rate of $52.50 in 7 hours?

What is $7.50/hr

100

The ratio of 10 apples to 45 mangos

2 to 9

100

The product of two negative numbers

Positive

200

What has a hand, but is not flesh, bone, or blood?

Clock

200

A word I know, Six letters it contains. Subtracting just one, and twelve is what remains.

Dozens

200

Unit rate of 9 bull's eyes to 117 throws

13 throws/bull's eyes

200

The ratio of 98 homes in 100 have TVs

49 to 50

200

The distance from zero

Absolute value

300

The more there is the less you see.

Darkness

300

X is an odd number. Take an alphabet away from X and it becomes even. Which is that number?

Seven (Seven-S=Even)

300

Unit rate of 416 miles in 8 hours

52 miles/hr

300

The ratio for 26 7th grade boys to 30 8th grade boys

13 to 15

300

Determine the value of w 

 3 - w = 10  

w = -7

400

You hear me once, you heard me again, and then I die until I am called again.

Echo

400

If you multiply this number by any other number, the answer will always be the same. What number is this?

Zero

400

12 oz can of juice for $1.08 or 20 oz can of the same juice for $2.20. Which is the better buy? Why?

12 oz unit rate is $.09/oz The 20 oz unit rate is $.11/oz 12 oz is better buy

400

Ratio of 32 out of 40 written 3 ways

4/5 

4:5

 4 to 5

400

Determine the value of  m  

 -12m = -156  

m = 13

500

Creeping on its belly, curled into a ring. Eyes forever open, beware its lethal sting.

Snake

500

How can you take 2 from 5 and leave 4?

Hint:

(Something with the words and the answer is a word)

F I V E

500

What is the best buy?

 6 shirts for $25.50

 4 shirts for $18.00

 5 shirts for $21.00

5 shirts for $21 - $4.20/1 shirt 

6 shirts - $4.25/1 shirt

 4 shirts - $4.50/1shirt

500

7th gr boys:26 

7th gr girls: 34 

8th gr boys: 30

 8th gr girls: 22 

What is the ratio of girls to all students

1 to 2

500

The sum of a number and its opposite multiplied by negative five

0

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