1.find the sum of 3 245 and the difference of 5 275 and 4 198

2.1.add the product of 6 fives and 4 twos to the difference between the greatest 5 digit number and the least 5 digit number that can be formed sing the digits 3, 0, 6, 7, and 5.

answer niyo po need ko na po plssss