Powers of 10 Add 1 to the power Subtract 1 from the power 104 103 102 10 1 100 10-1 10-2 10 1 0.1 100 0.01 10000 1000 Multiply by 10 Divide by 10

Division always makes numbers smaller TRUE OR FALSE? Division always makes numbers smaller Multiplication always makes numbers bigger Class votes

Try multiplying and dividing the numbers on the left hand side by those on the right hand side. Investigate 0.6 25 0.23 62.5 0.00482 800 0.09 1.5 0.1 1/100 0.01 10 100 1/10 x Demonstrate use of table to collate results ÷

Organise your findings into a table: Multiply Divide 0.1 1/10 10 0.01 1/100 100 x y

What can you see? Multiply Divide 0.09 0.23 0.6 1.5 25 62.5 800 0.1 1/10 10 0.01 1/100 100 0.00482 0.09 0.23 0.6 1.5 25 62.5 800 What can you see?

0.1 0.01 1/10 1/100 10 100 0.1 0.01 Multiplying by Dividing by Is the same as Is the same as Multiplying by Dividing by 0.1 0.01 1/10 1/100 10 100 Is the same as Is the same as Dividing by Multiplying by 0.1 0.01

Multiplying and dividing by powers of 10 7.34 x 100 = 734 37.4 / 10 = 3.74 9.3 x 0.1 = 9.3 / 10 = 0.93 0.27 / 0.1 = 0.27 x 10 = 2.7 0.63 x 0.01 = 0.63 / 100 = 0.0063 5.96 / 0.01 = 5.96 x 100 = 596

Multiplying by a number less than 1 makes things smaller. What did you find out? Multiplying by a number less than 1 makes things smaller. Dividing by a number less than 1 makes things bigger