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Grade 3 - Mathematics
2.11 Order of Operations Involving +, -, and *

  • When performing arithmetic operations there can be only one correct answer.
  • In order to avoid this kind of confusion, Mathematicians have devised a standard order of operations for calculations involving more than one arithmetic operation.
  1. Perform any calculations inside parentheses.
  2. Perform all multiplications and divisions, working from left to right.
  3. Lastly, perform all additions and subtractions, working from left to right.
Evaluate the following arithmetic expression: 4 + 5 x 3
Solution 1 Solution 2
4 + 5 x 3
= 9 x 3
= 27
4 + 5 x 3
= 4 + 15
= 19
Incorrect Correct
Answer: 19

Directions: Evaluate the following arithmetic expressions. Also write at least ten examples of your own using operations: addition, subtraction, multiplication and division.
Question 1: This question is available to subscribers only!

Question 2: This question is available to subscribers only!

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