Выразите величину в более крупных единицах, заполнив пропуски в цепочке равенств: а) 1 мм = см = дм = м = км; б) 3 мм = см = дм = м = км; в) 1 гр = кг = ц = т; г) 7 гр = кг = ц = т.

1мм=0.1см,0.01дм,0.001м,0.0001км
3мм=0.3см,0.03дм,0.003м,0.0003км
1гр=0.001кг,0.00001ц,0.000001т
7гр=0.007кг,0.00007ц,0.000007т