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Presentation study book Operation Maths of Michael Browne, Claire Corroon, Siobhán Kelleher, Denise Dwyer (life) - ISBN: 9781845366797 (life without maths)
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ملخص عملية الرياضيات ، ISBN: 9781845366797 الجبر
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AlgebraClass – 6
M.H.D.C.SBM janak puri bal mandir
Made By - Harit Rai
, Introduction to algebra
Algebra is a branch of mathematics that deals
with symbols and rules for manipulating those
symbols.
,Algebraic expression
, Algebra assumption
• Now imagine that there are 60 students in a
class
Now out of them 24 are girls
now how many of them are boys
Just simple we don’t now that how many
Of them are ‘boys’
Use ‘x’ is used for unknown terms
, Solution of the question
• So now we have:-
x{Boys} + 25{girls} = 60
x{boys} = 60 – 24 {means total – 24}
x{boys} = 36
so there are 36 boys in class.
This is how are variables used
, Second Algebra assumption
• Let’s say we have ‘x’ number of chocolate
Again we purchase same‘x’number of chocolates
so the total would be x + x = 2x
, What is a variable?
• a variable is a number which does not have a
fixed value. For example, the number 5 or the
number 100 or any other given number is not
a variable.
, What is constant?
• In Algebra, a constant is a number on its own
, What is term?
• In algebra, terms are the values on which
the mathematical operations take place in
an expression.
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