prime numbers
random
multiplication
subtraction
divide
100

the sum of the first seven prime numbers divided by two is?

 29

100

what is the only number that has the some numbers of letters as it's meaning.

four

100

 13x56?

728

100

  56-43

13

100

7÷7

1

200

which is the largest prime number less than 100? 

97

200

what number doesn't its own roman numeral  

zero

200

9x22

728

200

415-32.5

382.5

200

28 ÷ 6

4.666

300

If  p is a prime number, how many factors does p2  have?

3

300

What is the smallest perfect number?

six

300

10x77

770

300

58-12

46

300

43 ÷ 90

0.4777

400

 The sum of the first seven prime numbers divided by two is?

29

400

What is the most popular lucky number?

seven

400

 44x215

9,460

400

71.3-6

65.3

400

52 ÷ 41

1.2682

500

The sum for hour consecutive integers is 210 . which one of these four integers is prime  

53

500

How many lives are cats said to have?

Nine

500

 41x69

2,829

500

78-24

54

500

82 ÷ 55

1.4909