Question

1/2-2,5 подробное решение действия

Answer 1

12-2.5=12-2510=510-2510=-2010=-2

12-25=510-410=110

Answer 2

1 7/12 : 3 1/6

Answer 3

Аууу

Answer 4

1 712:3 16=1912*619=612=12

Answer 5

(3/8+0,25+1/6): 1 1/12

Answer 6

ау

Answer 7

1/2-2/5=5/10-4/10=1/10=0.1