Question

Question 1 (1 point)

Which group of numbers makes up a fact family?
A: 09, 18, and 8
B: 15, 30, and 20
C: 20, 50, and 30

Answer 1

Answer: 20, 50, and 30

Explanation:

A fact family includes the same set of numbers. For example relating to to this Using Subtraction and addition. When adding or Subtracting you should get the same set of numbers .

= 50 - 20 = 30

50 - 20 = 30 50 - 30 = 20

50 - 20 = 30 50 - 30 = 2020 + 30 = 50