Let's solve the expression step by step, following the order of operations (PEMDAS/BODMAS rules):

1. **Multiplication and division** first, from left to right.
   
   \[
   90 \div 2 = 45
   \]
   
   The expression now becomes:
   \[
   45 - 5 + 20 \times 3
   \]

   Next, calculate the multiplication:

   \[
   20 \times 3 = 60
   \]

   The expression now is:
   \[
   45 - 5 + 60
   \]

2. **Addition and subtraction** from left to right:

   \[
   45 - 5 = 40
   \]
   \[
   40 + 60 = 100
   \]

So, the final answer is **100**.

Would you like further details on any step or have any other questions?

Here are 5 related questions:
1. What is the value of \(100 \div 5 + 8 \times 2\)?
2. How do you solve expressions with parentheses, like \( (90 \div 2) - (5 + 20) \times 3\)?
3. What is the result of \( 60 \times 3 - 45 + 12 \)?
4. Can you explain how to use PEMDAS or BODMAS in more complex equations?
5. How would you evaluate \(90 \div (2 - 5) + 20 \times 3\)?

**Tip:** Always remember to handle multiplication and division before addition and subtraction when evaluating expressions without parentheses!

Learn how to solve the arithmetic expression 90 : 2 - 5 + 20 x 3 by following the order of operations (PEMDAS/BODMAS). This solution breaks down multiplication, division, addition, and subtraction step by step, helping students in Grades 6-8 master fundamental arithmetic skills.

Math Problem Statement

Solution

Ask a new question for Free

By Image

Math Problem Analysis

Mathematical Concepts

Formulas

Theorems

Suitable Grade Level

Related Recommendation