If your answer differs, look at the process in the reshebnik to see which mathematical rule was applied differently.
Use the Reshalka or similar sites to check the final answer. matematika 4 klass otvety demidova chast 2 reshebnik
ГДЗ по математике за 4 класс Демидова, Козлова часть 1, 2 If your answer differs, look at the process