Adding Doubles

Consider the objects:

1

Let's find the double of the objects shown.

Notice that there are five objects.
 

To find the double of this number, add five twice.
 

5 + 5 = 10
 

1b


So, the double of the number of given objects is 10.





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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.