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Chapter 2: Q6. (page 108)

Evaluate the expression. Justify each of your steps.

38+23+-8

Short Answer

Expert verified

Value of given expression is 53.

Step by step solution

01

Step-1- Concept of commutative property and associative property of addition

The commutative property is a math rule says thatthe order in which we add numbers does not change the final product.

A+B=B+A

The associative property of addition states that the addition of three or more numbers remains the same regardless of how the numbers are grouped,

A+B+C=A+B+C.

02

Step-2-Evaluating given expression

38+23+-8

Using order of operation,

38+23+-8=38+23+-8.

Using Commutative property,

38+23+-8=23+38+-8.

Using associative property,

38+23+-8=23+38-838+23+-8=23+3038+23+-8=53

03

Step-3-Conclusion

Therefore, the value of given expression is 53.

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