2. Выполни вычисления. 490 + 60 =V720 + 90 =510 - 40 =920 - 50 =1000 - 70 =286 + 7 =852 - 9 =567 + 6 =345 - 8 =

Question

Химия: 2. Выполни вычисления. 490 + 60 =V720 + 90 =510 - 40 =920 - 50 =1000 - 70 =286 + 7 =852 - 9 =567 + 6 =345 - 8 =

Vernаrd · Answer

Объяснение:490 + 60 =550  720 + 90 =810 510 - 40 =470 920 - 50 =870 1000 - 70 =930 286 + 7 =293 852 - 9 =843 567 + 6 =573 345 - 8 =​337...

2. Выполни вычисления. 490 + 60 =
V
720 + 90 =
510 - 40 =
920 - 50 =
1000 - 70 =
286 + 7 =
852 - 9 =
567 + 6 =
345 - 8 =