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Subtraction Input/Output Tables - within 20

We know that subtraction is the operation that decreases a number after the operation.

For example: Consider the table given below:

 
In Out
14 11
19 16
13 10
15 12

Let's find the rule from the table given.

Notice that the given rule makes each number decrease.

Try subtracting 3 from each number.

 

14 – 3 = 11

19 – 3 = 16

13 – 3 = 10

15 – 3 = 12

 

Here, on subtracting 3 from the ‘Input’ numbers, we get the ‘output’ numbers.
 

So, the rule is subtract 3.
ds

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Help

The correct answer is

Remember :

The smallest number is the one that comes first while counting.

Solution :

To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.

21,27,23

21 is the smallest number.