revision guide for maths. contents page division algebra distance times tables pythagoras
TRANSCRIPT
Revision Guide For Maths
Contents Page
Division
Algebra
Distance
Times Tables
Pythagoras
AlgebraAlgebra is one of the broad parts of mathematics, together with number theory, geometry and analysis. In its most general form algebra is the study of symbols and the rules for manipulating symbols and is a unifying thread of all of mathematics.
Example
• Solve the equation: Equation: x - 6 = 9• To get Equation: x on its own, we need
to add 6. If you add 6 to one side of the equation, you need to add 6 to the other side of the equation:
• Equation: x - 6 + 6 = 9 + 6 • Equation: x = 15
Division
In mathematics, especially in elementary arithmetic, division is an arithmetic operation. Specifically, if b times c equals a, written: a = b × c where b is not zero, then a divided by b equals c, written: a ÷ b = c For instance, 6 ÷ 3 = 2 since 3 × 2 = 6 In the expression a ÷ b = c, a is called the dividend or numerator, b the divisor or denominator and the result c is called the quotient.
Distance
Distance, or farness, is a numerical description of how far apart objects are. In physics or everyday usage, distance may refer to a physical length, or an estimation based on other criteria. In mathematics, a distance function or metric is a generalization of the concept of physical distance.
Times Tables
1 2 3 4 5 6 7 8 91 1 2 3 4 5 6 7 8 9
2 2 4 6 8 10 12 14 16 18
3 3 6 9 12 15 18 21 24 274 4 8 12 16 20 24 28 32 36
5 5 10 15 20 25 30 35 40 45
6 6 12 18 24 30 36 42 48 54
7 7 14 21 28 35 42 49 56 63
8 8 16 24 32 40 48 56 64 72
9 9 18 27 36 45 54 63 72 81
Pythagoras
You can work out other mathematical problems using Pythagoras' theorem. For instance, if you know two sides of a right-angled triangle, you can find the third like this:1.square (multiply by itself) the lengths you know 2.add or subtract them 3.find the square root
This is the Pythagoras theory
Quiz
1
What is the square route of 144?
111213
Well Done
Unlucky
2
Work out the answer. 45 + 46 = ?
89 90 91
Well Done
Unlucky
3
X=5 5x+7=?
273032
Well Done
Unlucky
4
What is 7x7?
404956
Well Done
Unlucky
5
Frank mows lawns for extra money. If he mows 5 lawns in one hour and has 30 lawns to mow, how long will it take him to mow all of them?
4 hours6 hours7 hours
Well Done
Unlucky
End of Quiz
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