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must have 0 before decimal ANSWERS IN 0.35 10-1 means 1/10 : divide by 10 -10 : subtract 10 multiply by -10 10-2 means mulitply by -100 -100 : subtract by 100 1/102 : 1/100 : divide by 100 How many places did the decimal move? Which way did the decimal move? Use calculator if needed 5 10 = left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 5.0 x 10-1 = left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 5.0 x 10-2 = left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 5.0 x 10-3 = left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 5.0 x 10-4 = left right How many places did the decimal move? Use calculator if needed 5.0 x 100 = How many places did the decimal move? Which way did the decimal move? Use calculator if needed 4.7 x 10-1 = left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 8.9 x 10-1 = left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 2.37 x 10-1 = left right How many places did the decimal move? Use calculator if needed 2.37 x 100 = How many places did the decimal move? Which way did the decimal move? 7.456 x 10-1= Use calculator if needed left right How many places did the decimal move? Which way did the decimal move? 7.456 x 10-2= Use calculator if needed left right How many places did the decimal move? Which way did the decimal move? 7.456 x 10-3= Use calculator if needed left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 2.37 x 10-2 = left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 23.7 x 10-3 = left right careful How many places did the decimal move? Which way did the decimal move? Use calculator if needed 23.7 x 10-4 = left right careful How many places did the decimal move? Which way did the decimal move? Use calculator if needed 0.54 x 10-3 = left right careful How many places did the decimal move? Which way did the decimal move? Use calculator if needed 0.54 x 10-1 = left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 0.54 x 10-2 = left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 0.207 x 10-3= left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 20.7 x 10-1= left right How many places did the decimal move? Which way did the decimal move? Use calculator if needed 20.7 x 10-2 = left right A negative exponent - makes the decimal move left that many places **doesn't---DOES NOT--mean add that many 0's **When you divide by 10-- decimal moves left 1 place **if exponent is negative--means divide by 10 **look at decimal count that many places left with a base of 10 |