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Monday, 14 September 2015

Eportfolio maths

In maths we have been doing decimal and decimal fractions addition, subtraction and multiplications. 

For example 2/8+2.9=6.09 So let's start with the 2/8 we are working with 10ths so two 8ths times 10 equals 80 2 times 10 equals 20 so it is 20/80 dived by 8 equals 2.5/10 or 3.15f you add 2.9 it equals 6.09

2/10+3/5=0.8 So let's start with the 3/5 we are working with tenths so we need to double the five then double the three whitch equals 0.6+0.2=0.8

0.3+199.9=200.2 0.9+0.3=1.2+199=200.2


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