Evaluating an Expression How can you use the properties of operations to evaluate this expression? 18 + 4(28)
Mathematics · Middle School · Wed Jan 13 2021
Answered on
Given the equation:
18 + 4(28)
Evaluate the expression.
Solution:
In order to evaluate the expression, we simply needed to multiply first the 4 by 28, then add the product to 18. By doing this we are applying PEMDAS, which means to start with parenthesis, exponent, multiplication, division, addition and lastly subtraction. In our case, since we only have two operations, then that means we start with multiplication followed by addition.
= 18 + 4(28)
= 18 + 112
= 130
Final answer:
= 130