How do you add $1.26 x 10^4 +2.5 x 10^3$ ?

Question

2841 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-03-31T11:51:46

You first bring both numbers to the same $10$ power

$2.5*10^3=0.25*10^4$
because you move the decimal point to the left $10$ power goes up .

Now add the numbers:
$1.26*10^4+0.25*10^4$
$=(1.26+0.25)*10^4=1.51*10^4$

How do you add 1.26 x 10^4 +2.5 x 10^31.26 x 10^4 +2.5 x 10^3?