Question

What's the scientific notation for 29,678,900,522

Answer 1

2.9678900522 * 10^10
For each additional 10 you multiply, you move the decimal point to the right.
Since you're multiplying by ten 10s, then you're going to have to move the original decimal to the LEFT, so once you multiply the 10s back in, the decimal will move back to its original location.