Question

2.1 x 10^5 +4.3 x 10^4

Answer 1

253,000

Explanation:

1. 
   `10^(5) = 100000`
2. 
   `10^(4) = 10000`
3. Plug the above answers in: 2.1 × 100,000 + 4.3 × 10,000
4. 2.1 × 100,000 = 210,000
5. Plug 210,000 in: 210,000 + 4.3 × 10,000
6. 4.3 × 10,000 = 43,000
7. Plug 43,000 in: 210,000 + 43,000
8. 210,000 + 43,000 = 253,000

I hope this helps!