maths revision

  • Created by: India_dh
  • Created on: 02-10-18 19:05
What is HCM and LCM
(LCM) lowest common multiple (HCM) Highest common factor.
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How do you work out factors on a calculator?
type SHIFT FACT
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squaring
1 squared=1 2 squared=4 3 squared=9 4 squared=16 5 squared=25 6 squared=36 7 squared=49 8 squared=64 9 squared=81 10 squared=100
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prime numbers
REMEMBER PRIME NUMBERS ONLY HAVE 2 FACTORS!!!
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prime numbers continued...(listed)
2,3,5,7,11,13,17,19,23,29,31,37,41,43(etc)
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BIDMAS
(BIDMAS) B=brackets I=indices D=division M=multiplication A=addition S=subtraction
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degrees in a circle?
there are 360 degrees in a circle.
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degrees in a triangle?
there are 180 degrees in a triangle
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What is FOIL
(FOIL) F=First O=Outside I=Inside L=Last
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How do you do float and ping? work out this question? x+3=12
Put a circle around + 3 and then it becomes -3 and floats over the equals sign so the equation becomes: x = 12-3 x=9 2) x -5 = 13 Again same idea. Put a ring around the minus 5 and then it will float over the equals sign and become: x= 13 +
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What does Arithmetic mean in maths?
Goes up and down by the same amount
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What does Geometric mean in maths?
Times by a constant number
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What does Fibonacci mean in maths?
Add 2 last terms to get the next one
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How do you find the Nth term?
To work out the nth term, we first must work out the common difference, and then we look at how we make the common difference equal one of the terms in the sequence. Usually, it will look something like "n+1", or "3n-5".
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Decimals.
REMEMBER TO IGRORE THE DECIMAL UNTIL THE END!!
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Dividing Decimals.
[Key Point] when dividing by a decimal you must times by 10 or 100 or 1000 so that its a whole number!
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How do you work out 10%?
To work out 10% take away one of the 0s
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How do you work out 5%?
To work out 5% divied your answer for 10% by 1/2
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How do you work out 1%?
To work out 1% take away all 0s
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How many degrees in a right angle?
90 degrees in a right angle
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Other cards in this set

Card 2

Front

How do you work out factors on a calculator?

Back

type SHIFT FACT

Card 3

Front

squaring

Back

Preview of the front of card 3

Card 4

Front

prime numbers

Back

Preview of the front of card 4

Card 5

Front

prime numbers continued...(listed)

Back

Preview of the front of card 5
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