introductory mathematics

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  • Created by: maxread
  • Created on: 30-09-19 11:24
what order should you complete a question?
BIDMAS
1 of 15
what is adding a negative to a positive equivalent of?
subtracting e.g. 22+-2= 20
2 of 15
equivalent of subtracting a minus?
adding e.g. 2--2=4
3 of 15
if a minus is in front of a bracket, what should you do?
calculate the sum in bracket, then apply e.g.-(2+2)= -4
4 of 15
when multiplying a negative by a negative, what is the result?
a positive, e.g. -2x-2= 4
5 of 15
if the numerator or denominator is negative, what is the total fraction?
negative, e.g. 3/-4= - 3/4
6 of 15
if both num and denom are negative, what js the fraction?
positive, e.g. -3/-4= 3/4
7 of 15
technique to divide fractions is?
flip second, multiply e.g. 2/3x 1/2=. 2/3x 2/1
8 of 15
technique to multiply fractions is?
numerators numerator, denominator by denominator
9 of 15
how do you divide/multiply a fraction by a whole number?
turn number into fraction, e.g. 5=. 5/1
10 of 15
how to turn one over fractions into normal?
multiply and and bxc, e.g. 1/1/2/5= 1x5/1x2
11 of 15
how to multiply two decimals?
ignore decimals, add in at end
12 of 15
how to divide decimals?
multiply to make whole number , then divide
13 of 15
how to find percentages?
turn percentage and number into fraction, multiply
14 of 15
how to find %change?
=change/originalx 100
15 of 15

Other cards in this set

Card 2

Front

what is adding a negative to a positive equivalent of?

Back

subtracting e.g. 22+-2= 20

Card 3

Front

equivalent of subtracting a minus?

Back

Preview of the front of card 3

Card 4

Front

if a minus is in front of a bracket, what should you do?

Back

Preview of the front of card 4

Card 5

Front

when multiplying a negative by a negative, what is the result?

Back

Preview of the front of card 5
View more cards

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