Question

How do i use the decimals 2.47,9.57,and 7.1 to write two different addition facts and two different subtraction facts?

Answer 1

Answers

2.47 + 7.1 = 9.57

7.1 + 2.47 = 9.57

9.57 - 2.47 = 7.1

9.57 - 7.1 = 2.47

Explanation

A fact family is a group of math facts using the same numbers.  In the case of addition/subtraction, you use three numbers and get four facts.

In this case we are going to write two different addition facts and two different subtraction facts as follows:

2.47,9.57,and 7.1

Addition facts

2.47 + 7.1 = 9.57

7.1 + 2.47 = 9.57

Subtraction

9.57 - 2.47 = 7.1

9.57 - 7.1 = 2.47