Solve 18-((560÷(70/3)-14)-9): Order of Operations Challenge

Question

18((560:70314)9)=? 18-((560:\frac{70}{3}-14)-9)=\text{?}

Video Solution

Solution Steps

00:00 Solve
00:05 Division is also multiplication by the reciprocal
00:17 Let's factor 560 into factors 8 and 70
00:33 Let's reduce what we can
00:43 Always solve parentheses first
00:47 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Calculate the division inside the innermost parentheses: 560:703 560 : \frac{70}{3} .
  • Step 2: Use the reciprocal to perform division: Rewrite as 560×370 560 \times \frac{3}{70} .
  • Step 3: Continue simplifying the expression from inside to outside.

Now, let's work through each step:
Step 1: Evaluate 560:703 560 : \frac{70}{3} . This is equivalent to 560×370 560 \times \frac{3}{70} .
Step 2: Perform the multiplication: (560×3)/70=1680/70=24(560 \times 3) / 70 = 1680 / 70 = 24.
Step 3: Simplify 2414 24 - 14. This results in 10 10 .
Step 4: Calculate 109 10 - 9 . This equals 1 1 .
Step 5: Subtract this from 18: 181=17 18 - 1 = 17 .

Therefore, the answer to the problem is 17 17 .

Answer

17 17