\[\boxed{Стр.\ \mathbf{101}\text{.\ \ }\mathbf{ОК\ ГДЗ\ - \ домашка\ на\ 5}}\]
\[Проверим\ себя.\ Вариант\ 2\]
\[\boxed{\mathbf{1}.}\]
\[8\ дес.\ 7\ ед.\ = 80 + 7 = 87\]
\[Ответ:87.\]
\[\boxed{\mathbf{2}.}\]
\[6\ дес.\ - 6\ ед. = 60 - 6 = 54\]
\[Ответ:на\ 54.\]
\[\boxed{\mathbf{3}.}\]
\[33 + 7 = 40\]
\[Ответ:40.\]
\[\boxed{\mathbf{4}.}\]
\[54 + 10 = 64\]
\[Ответ:64.\]
\[\boxed{\mathbf{5}.}\]
\[60 + 40 = 100\]
\[Ответ:100.\]
\[\boxed{\mathbf{6}.}\]
\[80 + 9 = 89\]
\[Ответ:89.\]
\[\boxed{\mathbf{7}.}\]
\[96 - 4 = 92\]
\[Ответ:92.\]
\[\boxed{\mathbf{8}.}\]
\[50 - 2 = 48\]
\[Ответ:0\ и\ 4.\]
\[\boxed{\mathbf{9}.}\]
\[25 + 25 = 25 \cdot 2\]
\[Ответ:25 + 25.\]
\[\boxed{\mathbf{10}.}\]
\[6 \cdot 9 = 54\]
\[6 \cdot 8 = 6 \cdot 9 - 6 = 54 - 6 = 48\]
\[Ответ:48.\]