3810
526,043,000
4,000,000 + 3,000 + 50 + 2 = 4,003,052
2,070,173,810
2,070,110,810
2070173810
3000 + 20 = 3020 Standard form just implies you write out the number numerically (as in 3020 and not three-thousand and twenty. So the answer is just 3020.
In standard form:2,000,000,00070,000,000100,00070,0003,000800+ 10________________2,070,103,810
3,000 plus 100 plus 4 plus 0.9 plus 0.07 is equal to 3,104.97
23505
replace the final 3 zeros with 810
83,472
3,530.053