mathayom 1 midterm reviewer 2025

What is the set of numbers consists of positive, negative and zero?

• counting numbers

• prime numbers

• integers

• power

What are the factors of 16?

• 1,4,8,16

• 1,2,4,8,16

• 2,4,8,16

• 1,2,3,4,16

Which of the following is the multiples of 9?

• 1,3,9

• 9,18,27

• 1,3

• 3

What are the prime factors of 24?

• 1,2,3,4,6,812,24

• 2,4,6,8,12,24

• 2 and 3

• 24,48,72

How many prime numbers are there between 1 and 100?

• 21

• 23

• 25

• 27

What method of prime factorization is this?

• multiplication

• division

• factor tree

• prime factors

Which of the following is the symbol of “five is greater than negative two”?

• 5 < 2

• 5 < -2

• 5 > -2

• 5 > 2

What is the symbol of “negative six is less than 3”?

• -6 < 3

• -6 > -3

• 6 > 3

• -6 < -3

What is the inverse number of zero?

• negative one

• zero

• one

• positive one

Find the value of (-5) + (-25).

• 30

• -30

• -20

• 20