Question

What is 1.8×10 + 8.4×10

Answer 1

$1.8*10+8.4*10$ is the equation

Basically, you are multiplying 1.8 and 8.4 by itself ten times but here is a tip:

When multiplying by ten, move the decimal once to the right

So $1.8*10=18.$ and $8.4*10=84.$

That leaves $18+84$ which is $102$

Answer: 102

Answer 2

1.8+8.4=
10.2x10
=102.