Ответ:
99 + 1 = 100;
800 + 200 = 1000;
6 + 4 = 10;
100 − 1 = 99;
60 + 10 = 70;
75 + 25 = 100;
999 + 1 = 1000;
800 − 701 = 99;
1000 − 2 = 998;
1000 − 10 = 990;
800 − 2 = 798;
1000 − 90 = 910.
99 + 1 = 100;
800 + 200 = 1000;
6 + 4 = 10;
100 − 1 = 99;
60 + 10 = 70;
75 + 25 = 100;
999 + 1 = 1000;
800 − 701 = 99;
1000 − 2 = 998;
1000 − 10 = 990;
800 − 2 = 798;
1000 − 90 = 910.