PastyMexican24
03.09.2019 •
Mathematics
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
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Ответ:
20, 50, and 30
Step-by-step 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
Ответ:
hope this helps,, have a nice day :))