Mathematics Grade 6 15 min

Multiplication input/output tables: find the rule

Multiplication input/output tables: find the rule

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Introduction & Learning Objectives

Learning Objectives Identify input and output values in a given table. Recognize multiplication patterns between input and output pairs. Formulate a multiplication rule from a set of input/output pairs. Use the derived rule to predict missing output values. Use the derived rule to predict missing input values. Express the multiplication rule algebraically (e.g., Output = Input × n). Verify the formulated rule using all given input/output pairs. Ever wonder how machines know exactly what to do with what you give them? 🤖 It's all about following a rule! In this lesson, you'll become a rule detective, learning to uncover the hidden multiplication rule that connects numbers in a table. This skill helps you understand how patterns work and predict outcomes in variou...
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Key Concepts & Vocabulary

TermDefinitionExample InputThe starting number or value that goes into a process or rule. It's often the first value in a pair.In the table (2, 10), (3, 15), the numbers 2 and 3 are inputs. OutputThe resulting number or value after a rule is applied to the input. It's often the second value in a pair.In the table (2, 10), (3, 15), the numbers 10 and 15 are outputs. Input/Output TableA table that organizes pairs of input and output values, helping to show the relationship or rule that connects them.A table with columns labeled 'Input' and 'Output' and rows of corresponding numbers. RuleA consistent mathematical operation or set of operations that transforms an input into its corresponding output.If an input of 2 gives an output of 8, and an input of 3 gives an...
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Core Formulas

General Multiplication Rule $\text{Output} = \text{Input} \times n$ This is the general algebraic form for a multiplication rule, where 'n' represents the constant multiplier that you need to find. Finding the Constant Multiplier (n) $n = \frac{\text{Output}}{\text{Input}}$ To discover the constant multiplier 'n', divide any output value by its corresponding input value from the table. This value 'n' should be the same for all pairs in a multiplication table. Using the Rule to Find Missing Output $\text{Missing Output} = \text{Given Input} \times n$ Once you've found the constant multiplier 'n', you can calculate any missing output by multiplying its given input by 'n'. Using the Rule to Find Missing Input...

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Sample Practice Questions

Challenging
Find the multiplication rule for the table. Note that the output is smaller than the input. | Input | Output | |---|---| | 10 | 5 | | 16 | 8 | | 24 | 12 |
A.Multiply by 2
B.Multiply by 0.5
C.Subtract 5
D.Divide by 0.5
Challenging
The table below follows a multiplication rule. First, determine the rule. Then, use the rule to find the output when the input is 200. | Input | Output | |---|---| | 4 | 52 | | 7 | 91 | | 10 | 130 |
A.260
B.2080
C.2600
D.248
Challenging
The table below is supposed to follow the rule 'multiply by 8', but one output value is incorrect. Identify the input whose output is wrong. | Input | Output | |---|---| | 3 | 24 | | 7 | 56 | | 9 | 73 | | 12 | 96 |
A.Input: 9
B.Input: 3
C.Input: 7
D.Input: 12

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