Number Properties
Word Problems
Algebra and Arithmetic
Geometry
Logic and Puzzles
100

What is the only even prime number?

2

100

What is the only number that has the same number of letters as its meaning ?

FOUR


100

Solve: 10−(4+1)×2

0

100

Which shape has four equal sides and four right angles?

Square

100

What is the next number in the sequence: 2, 4, 6, 8, ...?

10

200

What is the largest prime number less than 100?  

97

200

If Sally is taller than Anna, and Anna is shorter than Kate, who is the shortest?

Anna

200

3/8 + 5/6  

 29/24

200

How many vertices does a cube have?

8 vertices

200

True or False: All squares are rectangles

True

300

What is the square root of 144?

12

300

If today is Monday and tomorrow is two days before the day after Thursday, what day is it tomorrow?

Tuesday

300

Calculate the sum of the first 20 even numbers

420

300

How many degrees are there in the sum of the angles of a triangle?

180 degrees

300

Fill in the missing numbers in the sequence below 

3, 6, 12, 24, 48, __, __

96, 192

400

Find a two-digit number such that the sum of its digits is 9, and the product of its digits is 14

72

400

Write the list of 10 numbers which divisible by 9 if the sum of the digits is divisible by 9

9, 18, 27, 36, 45, 54, 63, 72, 81, 90

400

Subtract: 3.5−1.25

2.25

400

Find the perimeter of a square with side length 8 meters: P = ?

32 meters

400

I am a three-digit number. My hundreds digit is equal to the sum of my tens and ones digits. My tens digit is equal to the difference between my hundreds and ones digits. What number am I?

198

500

Find the sum of all prime numbers between 50 and 100

The prime numbers between 50 and 100 are 53,59,61,67,71,73,79,83,89,9753,59,61,67,71,73,79,83,89,97. The sum of these prime numbers is 53+59+61+67+71+73+79+83+89+97=72753+59+61+67+71+73+79+83+89+97=727.

500

Tom drove 250 miles for a business trip. If his car gets 25 miles per gallon of gas and gas costs $3.50 per gallon, how much did he spend on gas for the trip?

Tom spent $35 on gas for the trip

500

A recipe calls for 2 cups of sugar to make 24 cookies. How many cups of sugar are needed to make 36 cookies?

3 cups

500

If the diameter of a circle is 82 centimeters, what is its radius?

41

500

What logic puzzle involves filling a grid with digits so that each column, each row, and each of the nine 3x3 subgrids contain all of the digits from 1 to 9?

Sudoku