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Input/Output Tables For Division
Consider the table:
In | Out |
54 | 6 |
63 | 7 |
72 | 8 |
81 | 9 |
90 | 10 |
Let's find the rule from the given table.
The rule makes each number decrease.
Try using division.
54 ÷ 9 = 6
63 ÷ 9 = 7
72 ÷ 9 = 8
81 ÷ 9 = 9
90 ÷ 9 = 10
Here, the input is each time divided by 9.
The rule is “divide by 9.”