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Question 1

Which is the only number equal to its opposite?

Answer 1

0 is the only number equal to its opposite: 0 = -0

Question 2

Which numbers are factors of 0

Answer 2

All numbers are factors of 0

Question 3

0 is a multiple of which numbers

Answer 3

0 is a mupltiple of all numbers

Question 4

Which number is the only one equal to all of its multiples

Answer 4

Zero is the only number equal to all of its multiples

Question 5

Zero is not a factor of any number except…

Answer 5

Zero is not a factor of any number except itself (since 0=0*k)

Question 6

Any number raised to the zero power is…

Answer 6

1 (except for 0)

Question 7

Is zero even or odd

Answer 7

Zero is even

Question 8

Which number is a factor of all numbers

Answer 8

1 is a factor of all numbers

Question 9

All numbers are multiples of which number

Answer 9

All numbers aer multiples of 1

Question 11

1 raised to any power = ?

Answer 11

1 raised to any power = 1

Question 12

By which number can you multiply/divide any number without changing them?

Answer 12

Multiplying/dividing any number by 1 doesn’t change number

Question 13

Which is the only number with exactly one factor?

Answer 13

One is the only number with exactly one factor

Question 14

Is 1 a prime number

Answer 14

1 is not a prime number (first prime number is 2)

Question 15

Prime number

Answer 15

Divisible by only 1 and itself

Question 16

Even/even=

Answer 16

Even, odd or non-integer

Question 17

Even/odd=

Answer 17

Even, non-integer

Question 18

Odd/odd=

Answer 18

Odd or non-integer

Question 19

Odd/even=

Answer 19

Non-integer

Question 20

List the first 25 prime numbers

Answer 20

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97