Subtracting Two Numbers Within 20

Let's find the difference of 5 and 3.

1 a

5 – 3 = ?

First, count the total number of turtles.

1 b
 

There are five turtles.
 

Now count the number of turtles which are crossed.

1 c
 

Out of 5 turtles, 3 are crossed.
 

Remaining number of turtles = 2
 

5 – 3 = 2

 

So, the difference of 5 and 3 is 2.
ds

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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.