Addition
Multiplication
Counting
Primes
Random
100

Find the sum  2 + (17 + 18) .

37

100

What is  5 \cdot 5 \cdot 5 \cdot 2 \cdot 2 \cdot 2 ?

1,000

100

How many numbers are on the list 

3,4,5,...,18,19,20

18

100

This is the only even prime number.      

2

100

When you add an even number to an even number, what type of a number is the sum?

Even

200

What is the sum of the first 10 integers? That is what is  1+2+3+...+8+9+10 

55

200

Compute  (1\cdot 5\cdot 25\cdot )\cdot (4\cdot 2\cdot 1) 

1,000

200

How many numbers are in the list  1,3,5,7...25,27,29 

15

200

What is the 5th prime number? 

11

200

When you multiply an even number with an odd number what type of a number is the product?

Even

300

Compute  6+13+7+4 

30


300

Find  \frac{1}{2}\cdot \frac{2}{3}\cdot \frac{3}{4}\cdot \frac{4}{5} 

 \frac{1}{5} 

300

How many positive 2-digit numbers are divisible by 2?   

49

300

What is the smallest odd prime number?

3

300

How you add an even and an odd number together, what type of a number is your sum?

Odd

400

Compute 

-22+(-21)+(-20)+...+21+22+23

23

400

Compute 

(-5)\cdot(-4)\cdot...\cdot 4\cdot 5 \cdot 6

0

400

How many two-digit numbers are divisible by 10?

9

400

What is the smallest prime number in the 50s?  

53

400

What are the first 4 digits of  \pi 

3.141

500

What is the sum of the first 20 numbers. That is,  1+2+3+...+18+19+20        

210

500

Compute   356 \cdot 10 \cdot 10\cdot 10  .

356000

500

How many different arrangements can be made from the letters A,B, and C. 

6

500

What three distinct prime numbers have a product of 66?  

2,3, and 11. 

500

What is the next number in the sequence 1,4,9,16,25

36

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