Multiplying & Dividing decimals

By Frances White

Multiplying Decimals

Question: 0.3x0.2


  • First count the amount of digest after the decimal place.
  • Then times the decimal by 1 after the 1 add the same amount of 0 as the amount of digest after the decimal place in this case we would times both number by 10. This should make the decimal a whole number.
  • Then add the 2 new number together.
  • Now take the number beginning with 1 that you originally multiplied the decimal by. Divide it by that the do the same for the second decimal.
  • That's it.

Have a go!

Example:0.3x0.2

0.3x10=3 0.2x10=2 2+3=5 5.\'10=0.5 0.5.\'10=0.05

Try these...........

1) 0.02x0.4

2) 5x0.006

Dividing Decimals

Question:1.2.\'6

  • First see how meany times the whole number goes into the number before the decimal. If it doesn't forget about the decimal point and see how meany times the whole number goes into the new number. If both numbers are decimals divide by 1And on the end add the same amount of 0s as there are numbers after the decimal point.
  • Then do the same for the second number. If you left the decimal point you can skip this part
  • Now if you have a remainder on any number during this equation the you just have to minors it from the 1st answer. Divide by the 1number.
__0.6___

6 |1.2

Have another go!

Try these.......

3) 0.8.\'0.2

4) 30.\'0.5

Answer

1) 0.006

2) 0.011

3) 0.4

4) 2.5