21 Plus 138 Addition :

Number 1	Number 2	Answer
21	138	159

How to calculate 21 plus 138 ?

Let's Add Two Numbers Together!

Imagine you have two numbers:

Number 1: 21

Number 2: 138

Now, let's go step by step:

Step 1: Start by looking at the rightmost digit of each number (the ones place).

Add 21's ones place (1) to 138's ones place (8).

Result: 1 + 8 = 9

Finally, the Result:

Sum: 159

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.1	147	168.1	21.1 plus 147
21.2	155	176.2	21.2 plus 155
21.3	156	177.3	21.3 plus 156
7.1	3.6	10.7	7.1 plus 3.6
0.2	0.7	0.9	0.2 plus 0.7
9	0.3	9.3	9 plus 0.3