21 Plus 840 Addition :

Number 1	Number 2	Answer
21	840	861

How to calculate 21 plus 840 ?

Let's Add Two Numbers Together!

Imagine you have two numbers:

Number 1: 21

Number 2: 840

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 840's ones place (0).

Result: 1 + 0 = 1

Finally, the Result:

Sum: 861

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
21.1	845	866.1	21.1 plus 845
21.2	848	869.2	21.2 plus 848
21.3	851	872.3	21.3 plus 851
9.9	4.8	14.7	9.9 plus 4.8
9.1	2.5	11.6	9.1 plus 2.5
3.5	4.2	7.7	3.5 plus 4.2