You can find step-by-step solutions for each page of the 2015/2016 edition on popular educational sites:
If you are struggling with a specific concept, these are the main areas covered in the first half of the year: gdz po matimatike za 5 klass 1 chast kozlova rubin
ГДЗ по математике 5 класс Козлова, Рубин Решебник You can find step-by-step solutions for each page
: Reading, writing, and comparing large numbers. Рубин Решебник : Reading
: Points, lines, segments, and measuring angles.
: Learning to work with variables and solve for