Тапсырма
Сандарды көбейту:
| \(\displaystyle \times\) | \(\displaystyle 7\) | \(\displaystyle 6\) | ||
| \(\displaystyle 6\) | \(\displaystyle 9\) | |||
| \(\displaystyle +\) | ||||
Шешім
1. \(\displaystyle 6\underline{9} \)санының бірліктерін (бұл \(\displaystyle 9\)саны) \(\displaystyle 76{\small }\)санына көбейтеміз:
\(\displaystyle 9\cdot 76=684{\small . }\)
| \(\displaystyle \times\) | \(\displaystyle \bf 7\) | \(\displaystyle \bf 6\) | ||
| \(\displaystyle 6\) | \(\displaystyle \bf 9\) | |||
| \(\displaystyle +\) | \(\displaystyle \bf 6\) | \(\displaystyle \bf 8\) | \(\displaystyle \bf 4\) | |
| \(\displaystyle ?\) | \(\displaystyle ?\) | \(\displaystyle ?\) | ||
| \(\displaystyle ?\) | \(\displaystyle ?\) | \(\displaystyle ?\) | \(\displaystyle ?\) |
2. \(\displaystyle \underline{6}9\)санының ондығын (бұл \(\displaystyle 6\)саны) \(\displaystyle 76{\small }\)санына көбейтеміз:
\(\displaystyle 6\cdot 76=456{\small . }\)
| \(\displaystyle \times\) | \(\displaystyle \bf 7\) | \(\displaystyle \bf 6\) | ||
| \(\displaystyle \bf 6\) | \(\displaystyle 9\) | |||
| \(\displaystyle +\) | \(\displaystyle 6\) | \(\displaystyle 8\) | \(\displaystyle 4\) | |
| \(\displaystyle \bf 4\) | \(\displaystyle \bf 5\) | \(\displaystyle \bf 6\) | ||
| \(\displaystyle ?\) | \(\displaystyle ?\) | \(\displaystyle ?\) | \(\displaystyle ?\) |
3. . Сандарды қосамыз:
| \(\displaystyle +\) | \(\displaystyle 6\) | \(\displaystyle 8\) | \(\displaystyle 4\) | |
| \(\displaystyle 4\) | \(\displaystyle 5\) | \(\displaystyle 6\) | ||
| \(\displaystyle 5\) | \(\displaystyle 2\) | \(\displaystyle 4\) | \(\displaystyle 4\) |
Нәтижесінде келесіні аламыз:
| \(\displaystyle \times\) | \(\displaystyle 7\) | \(\displaystyle 6\) | ||
| \(\displaystyle 6\) | \(\displaystyle 9\) | |||
| \(\displaystyle +\) | \(\displaystyle 6\) | \(\displaystyle 8\) | \(\displaystyle 4\) | |
| \(\displaystyle 4\) | \(\displaystyle 5\) | \(\displaystyle 6\) | ||
| \(\displaystyle 5\) | \(\displaystyle 2\) | \(\displaystyle 4\) | \(\displaystyle 4\) |
Жауабы: \(\displaystyle 5244{\small . }\)