Order of Operations — Order of Operations worksheet for Grade 5.
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The order of operations exists so that everyone solves expressions the same way and gets the same answer. If we all just went left-to-right, 2 + 3 × 4 would equal 20 for some people (2 + 3 = 5, then 5 × 4 = 20) and 14 for others (3 × 4 = 12, then 2 + 12 = 14). Mathematicians agreed on PEMDAS to ensure all calculations are correct and consistent.
Encourage your student to work from the innermost parentheses outward. For example, in 5 × (2 + (3 + 1)), they should first solve the innermost (3 + 1) = 4, which gives 5 × (2 + 4), then solve (2 + 4) = 6, and finally calculate 5 × 6 = 30. Breaking nested parentheses into smaller steps prevents confusion.
Multiplication and division have equal priority in the order of operations, so you perform whichever appears first when reading left-to-right. In 20 ÷ 4 × 2, you divide first (20 ÷ 4 = 5) then multiply (5 × 2 = 10). But in 20 × 4 ÷ 2, you multiply first (20 × 4 = 80) then divide (80 ÷ 2 = 40). This same rule applies to addition and subtraction.
Your student likely added 2 + 3 first (getting 5), then multiplied by 4 (getting 20). Remind them that multiplication must happen before addition. The correct order is: first 3 × 4 = 12, then 2 + 12 = 14. Have them write PEMDAS above the expression and circle the multiplication before touching the addition.
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No. Parentheses always come first in PEMDAS. If you have (2 + 3)², you must solve what's inside the parentheses first (2 + 3 = 5), then apply the exponent (5² = 25). However, if you see 2 + 3² without parentheses, the exponent applies only to the 3, giving 2 + 9 = 11, because exponents are evaluated before addition.