1.263 x 10^9 - 1.525 x 10^7
1,263,000,000-15,250,000=1,247,750,000
1.263 x 10^9=126,300,0001.525 x 10^7=15,250,000126,300,000-15,250,000=111,050,000(i did long form coz i didn't have the right calculator)