Add'em Up
Subtract Them
Add and Subtract
Easy Riddles
Hard Riddles
100

13 + (-4) =

11

100

5 - 8

-3

100

15 + 2 - 5

12

100

What is so fragile that just saying its name breaks it?

Silence

100

What word has 26 letters but only three syllables?

Alphabet

200

-21 + 15

-16

200

12 - (-5) 

17

200

13 - (-9) + 5

27

200

What has an eye but cannot see?

A needle

200

What can you put in a bucket to make it weigh less?

A hole

300

15 + 5 + (-4)

16

300

20 - (-4) - 5

19

300

33 - 4 + (-19) + (-7)

3

300

What has a neck but no head?

A bottle or Guitar

300

What occurs once in a minute, twice in a moment, and never in 1,000 years? 

The letter M.

400

10 + (-7) + (-2)

1

400

-15 - (-15) - (-4)

-4

400

15 + 2 - 6 - 5 + 10

16

400

What can you catch, but not throw?

 A Cold

400

I am an odd number, take away a letter and I become even. What am I?

Seven

500

5+4+(-3)+(-7)+10=

9

500

18 - 20 - (-5)

3

500

-153 + 47 - 70 - 40

-216

500

What goes up but never comes down?

Your age

500

What word in the dictionary is spelled incorrectly?

Incorrectly