Solve (4² + 3²) ÷ √25: Order of Operations Practice

Question

Calculate and indicate the answer:

(42+32):25 (4^2+3^2):\sqrt{25}

Video Solution

Solution Steps

00:00 Solve
00:03 Let's calculate the exponents to solve the parentheses
00:06 An exponent is actually the number multiplied by itself according to the power
00:10 Let's calculate the exponents and then substitute in our exercise
00:22 Always solve parentheses first
00:25 Let's calculate the root
00:28 And this is the solution to the question

Step-by-Step Solution

Previously mentioned in the order of operations that exponents come before multiplication and division which come before addition and subtraction (and parentheses always come before everything),

Let's calculate first the value of the expression inside the parentheses (by calculating the values of the terms with exponents inside the parentheses first) :

(42+32):25=(16+9):25=25:25=2525 (4^2+3^2):\sqrt{25} =(16+9):\sqrt{25} =25:\sqrt{25} =\frac{25}{\sqrt{25}} where in the second step we simplified the expression in parentheses, and in the next step we wrote the division as a fraction,

we'll continue and calculate the value of the square root in the denominator:

2525=255 \frac{25}{\sqrt{25}} =\frac{25}{5} and then we'll perform the division (reducing the fraction essentially):

255=5 \frac{25}{5} =5 Therefore the correct answer is answer B.

Answer

5