volume_mute
Classify the Innermost Grouping Symbol
publish date: 2026/05/07 22:17:49.504905 UTC
volume_muteDrag each expression into the correct category based on which grouping symbol you must work within first.
drag and drop the selected option to the right place
Correct Answer
(1) \(67 - 5[-1 + (2 - 8)^2]\),Parentheses ( ) first
(2) \(\dfrac{-20 + 3(-5)}{21 - (-4)^2}\),Fraction bar — first
(3) \(-15 + 3(-4 + 7 \cdot 2)\),Parentheses ( ) first
(4) \(-[4 - (3^3 + 22 \div (-11))]\),Parentheses ( ) first
Explanation
When nested symbols exist, always start from the innermost pair. Parentheses are innermost in most expressions. The fraction bar groups numerator and denominator separately — both sides are evaluated first before division.
Reference
go-math-science.com