89.2k views
4 votes
What facts are a member of the same fact family as 7×2 = 14?

a) 3×5 = 15
b) 4×6 = 24
c) 8×3 = 24
d) 5×7 = 35

User Alek Davis
by
8.1k points

1 Answer

3 votes

Final answer:

The fact family for 7×2 = 14 includes other multiplication and division facts that use the same numbers. After evaluating the options, only 5×7 = 35 belongs to the same fact family, because it includes the number 7 and a shared product 7 in their division counterparts.

Step-by-step explanation:

A fact family is a set of related multiplication and division facts that involve the same numbers. Since the student provided the multiplication fact 7×2 = 14, we're looking for other multiplication (and also division) facts that contain the numbers 7, 2, and 14. Let's evaluate each option:

  • 3×5 = 15 does not belong to the fact family because 3, 5, and 15 are not used in the original fact.
  • 4×6 = 24 also does not belong to the fact family, as it uses the numbers 4, 6, and 24.
  • 8×3 = 24 is not part of the fact family for the same reason; it involves the numbers 8, 3, and 24.
  • 5×7 = 35 does belong to the same fact family as 7×2 = 14 because it includes the number 7 which is also in the original fact. Furthermore, if we find the division facts for both 7×2 = 14 and 5×7 = 35, which are 14÷2 = 7 and 35÷5 = 7, respectively, they share a common product, which is 7.

Hence, the only option that belongs to the same fact family as 7×2 = 14 is 5×7 = 35.

In conclusion, fact families are helpful for students to perform in their head and understand that math offers multiple paths to the same answer. A fact family for 7×2 = 14 would include 2×7 = 14, 14÷2 = 7, and 14÷7 = 2, in addition to the option d) 5×7 = 35.

User Snogglethorpe
by
7.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories