Maths : basic tips: knowledge Nugget. - Tamil Crowd (Health Care)

Maths : basic tips: knowledge Nugget.

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Maths: basic tips:  knowledge Nugget 

  • Tally marks are used to count and represent information in an easy way.
  • The four counts in tally marks are represented by four vertical lines.
  • Every fifth count in tally marks is represented by a diagonal or a slanting line that cuts across the four vertical lines.
  • This symbol is popularly known as a tally.
  • patterns can be formed with numbers, letters and shapes.
  • patterns can be increasing or decreasing in nature.
  • If the number or size of a shape increases in a pattern, it is an increasing pattern.
  • If the number or size of a shape decreases in a pattern, it is an decreasing pattern. 
  • Many patterns can be created with even and odd numbers. mixed patterns can also be created using two different patterns.
  • When a surface is covered by a pattern of flat shapes such that they don’t overlap and there are no gaps between the shapes, the pattern is called tessellation.
  • There are some shapes that cannot be used to make tiling patterns. It is because these shapes, when put together, leave gaps between them. The shapes overlap it you try to close the gaps .for example, a star and a circle.
  • Inkblots are same on both sides of the fold.
  • Mirror symmetry occurs when two halves of an object are mirror images of each other.
  • If a paper is cut at the folding, the cut is identical to the other part of the paper.
  • An object or shape is symmetrical when one half of it is exactly same as the other half.
  • The line that divides a shape into two matching halves is called the line of symmetry.
  • Mirror symmetry occurs when two halves of an object are mirror images of each other.
  • The kilometre [km] is a unit of length.
  • 1km =1,000m.
  • kilometre [km] is used to measure long distances such as the distance from one place to another in a city, distance between two cities and the length of a river.
  • 1m=100cm and 100cm=1m.
  • This relation can be used to convert the measurement of an object from one unit to the other.
  • The small markings between two centimetre marking on a ruler represent millimetres(mm).
  • 1cm=10mm.
  • A combination of different weight can be used to get a bigger weight.
  • Changing the shape of an object does not affect its weight.

Units of length

  • 1 kilometre=1,000metres
  • 1 metre=100 centimetres
  • 1 centimetre=10 millimetres

Units of Weight

  • 1 kilogram=1,000grams

Units of Capacity

  • 1 litre=1,000 millilitres

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