Multiplying by powers of 10

What are powers of 10? 100,000 10,000 1, GREATER THAN ONE LESS THAN ONE

Look for a pattern x 1 = x 10 = x 100 = x 1,000 = 1, x 10,000 = 12,400 The decimal point moves to the ______________ the same number of places as the number of zeros in the power of 10 greater than one. RIGHT

Examples 0.35 x 100 = 8.5 x 1000 = 2.72 x 1000 = 5.98 x 10,000 = 35 8,500 2,720 59,

WRITE THIS DOWN! If the power of 10 is………….. MMMMORE THAN ONE Decimal moves RIGHT You are almost done!

You are the BEST! Let’s test your knowledge! 0.25 x 100 = 6.55 x 100 = 0.9 x 10 = 3.48 x 10 = HOMEWORK Page 143 #9-20,

Look for a pattern x.1 = x.01 = x.001 = x.0001 = x = The decimal point moves to the ______________ the same number of digits as there are after the decimal in the power of 10 less than one. LEFT

Examples 5.4 x 0.01 = 93.6 x 0.1 = 7.84 x = 0.3 x =