calculations Flashcards
1
Q
what is BIDMAS
A
bracket indices division multiplication addition subtraction
2
Q
what is rounding
A
anything over 4 rounded up and anything under 5 rounds down
3
Q
Significant figures
A
significant figures are always non 0 no.s but if a no. such as 2.03 is given it would mean that this would be a 3 s.f.
4
Q
% to fraction
A
35% = 35/100 =7/20
5
Q
fraction to %
A
7/20 x 100 = ans. = 35%
6
Q
% to decimal
A
27% = 27/100 = 0.27
7
Q
decimal to %
A
0.07 x 100 = 7%
8
Q
Orders of fractions, decimals and %
A
you make all the no.s into a fraction ofr a percentage and then finding the LCM to order them
9
Q
Decimal place
A
anything that is a non 0 is considered a decimal placee but if a no. is 278.001407 it would be to the 4 d.p.s
