1. To convert to a smaller unit, move the decimal point to the right (tenths, hundrededths, thousandths) or multiply. Example 2L=____ml Answer=2000 Milliliters are smaller than Liters 2x1000 (milli=1 onethousandth) = 2000 OR 2.=2000. 1

2. To convert to a larger unit, move the decimal point to the left or divide (or multiply by a decimal; that’s easier. Example 2000 mL=_____L Liters are larger than milliliters 2000. mL=______L Remember, milli=1000 so I need to move my decimal three zeros to the left: 2.000 or multiply by.001 (tenths, hundredths, thousandths) 2

3. Ladder method x.001 Base unit X 10 x100 x1000 X.10 x.01 Larger to smaller Smaller to larger 3

4. Ladder method x.001 Base unit X 10 x100 x1000.1 x.01 Larger to smaller Smaller to larger 4 Deci Centi Milli Deka Hecto Kilo

5. Ladder method x.001.001 1 g X 10 x100 x1000.10.01 Larger to smaller Smaller to larger 5 Deci Centi Milli Deka Hecto Kilo 10 100 1000 x.1 x.01

6. Ladder method.125 x.001 Base unit 125 g X 10 x100 x1000 X.10 x.01 Larger to smaller Smaller to larger 6 Deci Centi Milli Deka Hecto Kilo 1250 12500 125000 12.5 1.25