Вычислите устно:
а) $\snippet{name: op_column_rows, args: ['28 + 32', ': 12', '* 17', '25'], solution: '?'}$;
б) $\snippet{name: op_column_rows, args: ['90 - 34', ': 14', '* 13', '+ 18'], solution: '?'}$;
в) $\snippet{name: op_column_rows, args: ['62 - 27', ': 7', '* 19', '- 16'], solution: '?'}$;
г) $\snippet{name: op_column_rows, args: ['95 - 37', ': 29', '+ 90', ': 23'], solution: '?'}$;
д) $\snippet{name: op_column_rows, args: ['100 - 8', ': 2', '- 45', '* 47'], solution: '?'}$.