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Chapter 2: Q. 3 (page 84)

Evaluate the expression. Justify each of your steps.

49鈭�25

Short Answer

Expert verified

The value of the expression is鈥�900.

Step by step solution

01

Step 1.  Order of operations

To evaluate any expression involving more than one operation, follow the below order of operations:

  • First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
  • Evaluate the exponents.
  • Perform Multiplication and division from left to right.
  • Perform addition and subtraction from left to right.
02

Step 2.  Multiply from left to right

To evaluate the given expression49-25, first multiply the two numbers from left to right and then multiply the resulting number with the last number as shown below

49鈭�25=4鈰�9鈭�25=36鈭�25

03

Step 3.  Multiply the numbers

Now to simplify further, multiply the resulting number with the last number to get

49鈭�25=36鈭�25=鈭�36鈰�25=鈭�900

Thus, the value of the expression is 鈥�900.

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Most popular questions from this chapter

Use the distributive property to write an equivalent variable expression.

(鈥�s鈥�鈥�+鈥�鈥�20鈥�鈥�)鈥�(-鈥�7)

Use the distributive property to evaluate the expression.

3(8+5)

Evaluate the expression using the distributive property and mental math.

4鈥�鈥�(鈥�鈥�98鈥�鈥�)

Find the area of the rectangle or triangle.

Identify the property that the statement illustrates.

n+q=q+n
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