How metric units and place value units are alike and unlike

Well metric unit is for measurement and place value units is for numbers

They are alike because one kilometer is one thousand times more than one meter like one thousand is one thousand times more than one one.

1 kilometer = 1,000 x 1 meter 1 thousand=1,000 x 1 one

1 Liter = 1,000 x 1 milliliter 1 ten thousand=1,000x 1 ten

1 Kilogram=1,000 x 1 gram 1 hundred thousand=1,000 x 1 hundred

They are different because metric units are for measurement/volume/mass and place value units are for counting/numbers.