Răspuns:
800 124-528 x 100 - (770 + 2 x 1 000) =
800 124-52 800-(770+2 000)=
747 324-2 770=744 554
1 000 000 : 1 000 : 100:10 + 999 999 : 3 =
1000:100:10+333 333=
10:10+333 333=
1+333 333=333 334
900 642-638 x 100 - (660 + 3 x 1 000) : 5 =
900 642-63 800-(660+3 000):5=
900 642-63 800-3 660:5=
900 642-63 800-732=
836 842-732=836 110