You are making two batches of a recipe of soup. If one batch of soup calls for 1500 milliliters of vegetable stock, how many liters of stock do you need altogether?

kilo
hecto
deca
unit--meters, liters, grams, etc
deci
centi
milli

Here are the prefixes. Move the decimal one place to the left if we go UP the table and one place to the right if we go DOWN the table. 1,500 mL so we start at the bottom of the table. We move one place up to centi, another place to deci, and a third place to liters. So 1,500 mL moves the decimal three places to the left to convert to liters; therefore, 1,500 mL = 1.5 L. You do the math. Remember this aid for conversions. It is helpful.

2500

To calculate the total amount of stock needed for two batches of soup, we can simply multiply the stock required for one batch by the number of batches.

In this case, one batch calls for 1500 milliliters (mL) of vegetable stock. Since 1,500 mL is in milliliters and we want to convert it to liters, we can use the conversion table provided.

Starting at the bottom of the table (milli), we move three places up to convert to liters: milli > centi > deci > unit (liters).

So, to convert 1,500 mL to liters, we move the decimal three places to the left. This gives us 1.5 liters (L).

Now, since we are making two batches of soup, we multiply the amount of stock needed for one batch (1.5 L) by the number of batches (2):

1.5 L/batch * 2 batches = 3 L

Therefore, you will need a total of 3 liters of stock altogether for the two batches of soup.