1. In the number 2754863, delete three digits so that the new number is:
a) the largest possible;
b) the smallest possible.
1. a) You need to delete the digits 2, 5, and 4 so that the number 7863 remains. 2 points

b) You need to delete the digits 7, 5, and 8 so that the number 2463 remains. 2 points

TOTAL 4 POINTS