Sydney can eat an entire bag of 100 chocolate covered peanuts in 20 mouthfuls. If each handful is the same size, choose the equation that will tell us how many peanuts are in each mouthful. \(?\)

\(100 \, \div \, 20 \, = \, x\)

\(x \, \times \, 100 \, = \, 20\)

\(100 \, \times \, 20 \, = \, x\)

\(20 \, \div \, x \, = \, 100\)

\(100 \, \div \, 20 \, = \, x\)

Darren has 72 total ice cubes in his iced tea. If 12 melt every hour, how many hours until there are no ice cubes? Choose the correct equation. \(?\)

\(x \, \times \, 72 \, = \, 12\)

\(72 \, \times \, 12 \, = \, x\)

Aiden has 180 total ice cubes in his iced tea. If 18 melt every hour, how many hours until there are no ice cubes? Choose the correct equation. \(?\)

\(180 \, \div \, 18 \, = \, x\)

\(180 \, \times \, 18 \, = \, x\)

\(18 \, \div \, x \, = \, 180\)

\(x \, \times \, 180 \, = \, 18\)

\(180 \, \div \, 18 \, = \, x\)

Write Variable Equations to Represent - Grade 5

Algebra

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Alberta Mathematics curriculum

Grade 5 - Patterns and Relations

Standard 5.PR.2 - Practice writing variable addition, subtraction, multiplication and division sentences to represent a word problem.

Included Skills: Algebra

Express a given problem as an equation in which a letter variable is used to represent an unknown number (limited to whole numbers). • Explain the purpose of the letter variable in a given addition, subtraction, multiplication or division equation with one unknown; e.g., 36 ÷ n = 6. • Express a given pictorial or concrete representation of an equation in symbolic form. • Identify the unknown in a problem, and represent the problem with an equation. • Create a problem for a given equation with one unknown.