Finding the Missing Number

Determine the unknown whole number in a multiplication or division equation relating three whole numbers when the unknown is either a missing factor or product.

Part of The student applies mathematical process standards to analyze and create patterns and relationships

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Intro

Finding the Missing Number

Today you will find a missing number in a multiplication or division equation. Sometimes a number in a math sentence is hiding, like 4 x ? = 20. The question mark is the unknown number. Your job is like being a detective, using the numbers you see to find the one you cannot.

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Times As Much As34 of 53Number Pairs and Rules