Order of Operations — Order of Operations worksheet for Grade 5.
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This usually indicates they are not following the order of operations consistently. For example, if they sometimes multiply before division (when division comes first from left to right), they'll get wrong answers. Emphasize that PEMDAS is not a suggestion—it's a mathematical rule everyone must follow so we all get the same answer. Have them use a step-by-step format where each operation appears on a new line, so you can identify exactly where the mistake occurred.
By Grade 5, especially at a hard difficulty level, students should be moving toward internalizing the order rather than constantly referencing the acronym. However, having a visual reference chart available during initial practice is helpful. Gradually reduce reliance on it by having them write PEMDAS themselves at the top of their worksheet. The goal is automaticity by Grade 6, so repetition with these harder problems is essential.
3² means 3×3=9 (the exponent is evaluated first), while 2×3=6. In a complex expression like 2+3², the exponent applies only to the 3, not to the 2, so the answer is 2+9=11, not 5²=25. This is critical at the hard difficulty level—students must understand that exponents have high priority and apply only to the number they're attached to. Have them rewrite 3² as 3×3 until they feel confident with the notation.
Negative numbers can complicate order of operations, especially in subtraction where students might confuse the operation with the sign. For example, in 10-2×3, they must multiply 2×3=6 first, then subtract: 10-6=4. Have them circle or box the negative sign and the number together as a unit, and separate it visually from the operation being performed. If negative numbers appear in these problems, consider that an additional layer of difficulty for your Grade 5 student.
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Showing all work serves two purposes: it helps you identify exactly where they made an error (if they did), and it helps students internalize the step-by-step process so they develop automaticity. At the hard difficulty level, problems have multiple steps, and skipping steps often leads to mistakes. Require them to write one simplified expression per line, with the operation performed circled or noted, so the logic is transparent.