11 Metric PrefixesKing Henry Died One December Cold Morning OR King Henry Died DRINKING Chocolate Milk , STAIR STEPS?
12 BIGGERSMALLERShow them the King Henry….then show them how to more from the left to the right…
13 1000 k BIG 100 h 10 dk 1 .1 d .01 c .001 m SMALL BASE (m, g, L) kilo hecto10dkdeca1BASE(m, g, L).1ddeci.01ccenti.001mmilliSMALL
14 How do you convert between metric units? Determine whether you are going up the ladder or down the ladder.If you go up, move the decimal to the left.If you go down, move the decimal to the right.Use the ladder to determine how many places to move the decimal.The number of steps on the ladder is equal to the number of decimal places.Write the correct units with your answer.
15 Practice Problems 1. 0.7834 mg = ____________ g cm = ______________ m3. 345,000 kg = ____________ gmm = _______________ hmcg = ________________ mgkm = _______________ cm
16 Scientific Notation Method of writing very small or very large numbers A positive exponent means the decimal moved to the left. A negative exponent means the decimal moved to the right
17 Scientific Notation602,200,000,000,000,000,000,000 = ?Step 1: Make the Coefficient less than 10 and more than 1.Step 2: Find out how many places over the decimal has to move to give you the number in step 1.
26 Significant Figures Rounding Numbers: -Round up if the digit to the right is between 5-959.48 59.5-Drop the number to the right if it’s between 0-43.84 3.8Significant Figures Tell You What Number To Round To!
27 Significant FiguresAll Non-zero numbers (1,2,3,4,5,6,7,8,9) are significantZeros –Front of number are NEVER significant0.0071, 0.42, all have 2 sig. figsMiddle of number are ALWAYS significant7003, , all have 4 sig. figsEnd are SOMETIMES significantAt end AFTER decimal, ALWAYS significant36.00, , all have 4 sig figsAt end BEFORE decimal, NEVER significant300, 7000, all have 1 sig fig
29 Significant Figures Addition and Subtraction Match the number with the least number of decimalsEx: = 17.3= 17.31= 17Multiplication and DivisionMatch value with fewest number of sig figsEx: 2.00 x 11 =222.00 x 11.0 = 22.02 x 11 = 20