Thursday 13 June 2013

EUKLIDS FRIDAY

Euklids

To multiply decimal numbers:
  1. Multiply the numbers just as if they were whole numbers.
  • Line up the numbers on the right - do not align the decimal points.
  • Starting on the right, multiply each digit in the top number by each digit in the bottom number, just as with whole numbers.
  • Add the products.
  1. Place the decimal point in the answer by starting at the right and moving a number of places equal to the sum of the decimal places in both numbers multiplied.

See how it moves three places across because in the question there were three decimals places 2.77 has two and 2.8 has one. 

37.7 x 2.8 =
3.77x2.8=
                                                            3.77x 28=
                                                          3.77 x 0.28=
Try these easy ones first

0.1
× 3.0

         
2:
4.0
× 0.6

         
3:
8.0
× 0.4

         
4:
0.3
× 5.0

         
5:
0.2
× 2.0

         
6:
5.0
× 0.1

         
7:
1.0
× 0.2

         
8:
0.8
× 7.0

         
9:
0.6
× 8.0

         
10:
0.5
× 5.0

         




         
Once you have completed these I have a worksheet for you sitting on my desk, so come and show me your answers and we can get you the worksheet. 


No comments:

Post a Comment