because you have to multiply to break it down into a smaller number
multiply
divide
When changing from a larger unit to a smaller unit, there will be more of them, so you will multiply.
to get a unit
Example. (meters to millimeters) There are more millimeters in a metre(1000 to be precise) Therefore you multiply by 1000 to get from metres to millimeters That is wrong we don't want an example You have multiply because the larger unit has to broken down into plenty of smaller measurements or units. When you do that the number is multiplied into many smaller units.
multiply
divide
When changing from a larger unit to a smaller unit, there will be more of them, so you will multiply.
You must divide.
Divide
To change from a smaller unit to a larger unit, you have to divide. For example, 100 centimetres is equal to 1 metre.
to get a unit
Multiply
To convert from a larger unit to a smaller unit you would multiply. Ex: 5 km = 5000 m Where 1 km = 1000 m <><><><><> It depends on which factor you are multiplying or dividing by. It can go either way. To convert from ounces to grams, for instance, you can divide by 28.350, or you can multiply by 0.035273.
multiply
multiply it by a decimal EXAMPLE: 10 x 0.5= 5
It makes sense to multiply when converting measurements to smaller units because it takes many smaller units to make up a larger unit. So in order to translate larger unit(s) into smaller units, you have to break up the larger unit(s) into many smaller pieces.