Question

Evaluate.7^2−3+9×8÷2=

Answer 1

ANSWER

82

EXPLANATION

To evaluate this expression, we have to follow the order of operations:

• Parentheses,: solve the expressions inside the parentheses first

,

• Exponents,: solve the exponents and roots second

,

• Multiplication, and ,Division,: solve multiplications and divisions next, from left to right

,

• Subtraction, and ,Addition,: solve subtractions and additions last

In this expression, there are no parentheses, but there is one exponent. Solve that one first,

$7^2-3+9\times8\div2=49-3+9\times8\div2$

Now, we have to solve the multiplication and then the division in the last term of the expression, in that order,

$49-3+(9\times8)\div2=49-3+72\div2=49-3+36$

Now, solve the subtraction and then the addition,

$49-3+36=46+36=82$

Hence, the result is 82.