21 Plus 688 Addition :

Number 1	Number 2	Answer
21	688	709

How to calculate 21 plus 688 ?

Let's Add Two Numbers Together!

Imagine you have two numbers:

Number 1: 21

Number 2: 688

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 688's ones place (8).

Result: 1 + 8 = 9

Finally, the Result:

Sum: 709

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.1	690	711.1	21.1 plus 690
21.2	693	714.2	21.2 plus 693
21.3	699	720.3	21.3 plus 699
6.3	2.7	9	6.3 plus 2.7
4.5	1.2	5.7	4.5 plus 1.2
2.5	4.9	7.4	2.5 plus 4.9