Question

Explain how you can use mental math to perform the following addition 61438+54579+28562

Answer 1

You add the last numbers then the second to last and etc. but remember what you carry over if you carry over any. if youre just looking for the answer it is 144579

Answer 2

Answer:

$61438+54579+28562=144579$            

Step-by-step explanation:

To find : Explain how you can use mental math to perform the following addition 61438+54579+28562 ?

Solution :

Mental math is just solving problem without using calculator.

Addition of number is adding each term by term according to their place value.

Writing number one upon one,

Steps 1 - Add 8+9+2=19 write 9 and take one to another term.

Step 2 - Add 3+7+6+1=17 write 7 and take 1 to another term.

Step 3 - Add 4+5+5+1=15 write 5 and take 1 to another term.

Step 4 - Add 1+4+8+1=14 write 4 and take 1 to another term.

Step 5 - Add 6+5+2+1=14 write whole 14.

 6 1 4 3 8

 5 4 5 7 9

+2 8 5 6 2

----------------

14 4 5 7  9

So, $61438+54579+28562=144579$