1. Problem: Add 827346532 and 342052447. Step: $$827346532 + 342052447 = 1169398979$$ 2. Problem: Add 72341 to the sum of 54890 and 13812. Step: $$54890 + 13812 = 68702$$ Step: $$68702 + 72341 = 141043$$ 3. Problem: Find difference between 785976 and 432265. Step: $$785976 - 432265 = 353711$$ 4. Problem: Given subtrahend 876634 and minuend 9005506, find remainder. Step: $$9005506 - 876634 = 8128872$$ 5. Problem: How much is 23801002 greater than 15875786? Step: $$23801002 - 15875786 = 7925216$$ 6. Problem: Add 85334 and 83421, then add result to 65722. Step: $$85334 + 83421 = 168755$$ Step: $$168755 + 65722 = 234477$$ 7. Problem: What number is 28875547 less than 35902103? Step: $$35902103 - 28875547 = 7026556$$ 8. Problem: 1658342 added to 5934756 is what number? Step: $$1658342 + 5934756 = 7593098$$ 9. Problem: 8839759 diminished by 354232 is what number? Step: $$8839759 - 354232 = 8485527$$ 10. Problem: Total of 243658437 and 8697845 added to sum of 67542370 and 34621. Step: $$243658437 + 8697845 = 252356282$$ Step: $$67542370 + 34621 = 67576991$$ Step: $$252356282 + 67576991 = 319933273$$ 11. Problem: If 239407030 reduced to 148738109, what must subtract? Step: $$239407030 - 148738109 = 90668921$$ Final answers: 1. 1169398979 2. 141043 3. 353711 4. 8128872 5. 7925216 6. 234477 7. 7026556 8. 7593098 9. 8485527 10. 319933273 11. 90668921