Решебник по математике 5 класс Виленкин Часть 1, 2 Часть 1. Параграф 1. Натуральные числа и нуль. Шкалы Задание 102

\[\boxed{\mathbf{1}\mathbf{.102}}\]

\[\textbf{а)}\ 27 + 3 = 30\]

\[68 + 2 = 70\]

\[71 + 9 = 80\]

\[55 + 5 = 60\]

\[34 + 26 = 60\]

\[\textbf{б)}\ 52 - 7 = 45\]

\[36 - 9 = 27\]

\[40 - 6 = 34\]

\[23 - 8 = 15\]

\[61 - 4 = 57\]

\[\textbf{в)}\ 9 \cdot 8 = 72\]

\[8 \cdot 7 = 56\]

\[9 \cdot 9 = 81\]

\[6 \cdot 8 = 48\]

\[7 \cdot 0 = 0\]

\[\textbf{г)}\ 53 \cdot 10 = 530\]

\[60\ :10 = 6\]

\[80 \cdot 10 = 800\]

\[1000\ :1000 = 1\]

\[100 \cdot 100 = 10\ 000\]

\[\textbf{д)}\ 45\ :9 = 5\]

\[64\ :8 = 8\]

\[49\ :7 = 7\]

\[30\ :6 = 5\]

\[48\ :8 = 6\]