Diana baked x cookies. She packs them up to give to her best friends. She gives packages of cookies to 7 friends. If each packege contains 10 cookies, which equation represents the number of cookies per package? \(x \, \div \, 7 \, = \, 10\)

\(7 \, \times \, x \, = \, 10\)

Makayla likes to eat 5 bananas every week. The recommended dose is actually 10 bananas though so Makayla needs to eat more. Which equation represents this? \(5 \, + \, x \, = \, 10\)

\(5 \, \times \, x \, = \, 10\)

Write Variable Equations to Represent - Grade 3

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Grade 3 - Patterns and Relations

Standard 3.PR.3 - Practice writing variable addition, subtraction, multiplication and division sentences to represent a word problem.

Included Skills:

Solve one-step addition and subtraction equations involving symbols representing an unknown number.
• Achievement Indicators
- Explain the purpose of the symbol, such as a triangle or a circle, in a given addition and in a given subtraction equation with one unknown.
- Create an addition or subtraction equation with one unknown to represent a given combination or separation action.
- Provide an alternative symbol for the unknown in a given addition or subtraction equation.
- Solve a given addition or subtraction equation that represents combining or separating actions with one unknown using manipulatives.
- Solve a given addition or subtraction equation with one unknown using a variety of strategies including guess and test.
- Explain why the unknown in a given addition or subtraction equation has only one value.

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