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Class III - maths: Patterns
One Word Answer Questions:
Q) How many lines of symmetry does a circle have?
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Q) Even + odd = ___?
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Q) When we multiply a number by 10, the product is the same number followed by a ____?
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Q) Odd + ___ = Even?
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Q) Rohi draws a square and wonders how many lines of symmetry it has. Draw the square and the lines of symetry?
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Q) 2 + 1 = ?
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Q) 221 + 20 = ?
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Q) Numbers from which we can make pairs are called?
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Q) 67 + 3 = ?
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Q) 90 + 9 =?
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Short Answer Questions:
Q) Look for the pattern in the following series and write (a) 7,11,15,19,____ (b) 1A,2B,3C,4D,__
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Q) Draw any two symetrical figures?
    
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Q) Draw any two complete halves figures?
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Q) Look for the pattern in the following series and write (a) 18,16,14,12,____ (b)200,180,160,140__
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Q) Explain about Tiling patterns?
    
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Q) 5678 - 657 = ?
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Q) 80, 85, 90, 95 ________?
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Q) 6579 + 2349 = ?
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Q) Write about Patterns?
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Q) Write about Numbers And Patterns?
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Long Answer Questions:
Q) Explain about symetrical figures and complete halves figures?
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Q) Explain about Numbers and patterns with example?
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Q) Explain about patterns in a number series with one example?
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Q) Fill in the blanks (a) 6 + __ = odd number (b) ____ + ___ =even number (c) 55 + ___ = 61?
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Q) Explain about more patterens and give example?
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Q) Fill the empty spaces 19 , 18 , __ , 16 , __ , 14 , 13 , __ ?
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Q) What is the next pattern in the following series? AB, ABC, ABCD, ABCDE,_?
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Q) Write the next 3 terms of these following 67 , 63 , 59 , 55 , __ , __ , __ ?
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Q) Write the next 3 terms of these following 1 , 4 , 7 , 10 , 13 , __ , __ , __?
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Q) Find the pattern and fill in the empty spaces 69 , __ , 49 , __ , 29 , __ , 9?
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Patterns

SYMMETRICAL FIGURES:

Figures through which a line can be drawn to divide them into two equal halves are called symmetrical figures.
symmetrical

COMPLETING HALVES:

Look at one half of the shapes shown here and observe how they look on being completed.
Tiling Patterns
  • You must have seen beautiful patterns made of titles on the floor and bathroom walls in many buildings
  • Tiles are of various shapes. Some are square in shape, some are rectangular, while some are in the shape of a triangle
  • tilings
  • The colours used for the tiles create different patterns, with the same shapes.
  • Some tiles have six sides. We can completely cover the floors by using tiles without leaving any gaps in between the two tiles.
Numbers And Patterns

Numbers also have patterns. Let us see

  • We know that numbers from which we can make pairs are called even numbers
  • The numbers which are not even are odd numbers
  • When we add 2 odd numbers or 2 even numbes, the sum is always an even number
  • When we add 1 odd and 1 even number, the sum is always an odd number
  • Example:
    3+3=6(odd+odd=even)
    8+2=10( even+even=even)
    7+10=17(odd+even=odd)
Patterns In Numbers
  • Numbers arranged in a series follow a pattern
  • If we find the pattern in a series, we can write more numbers in the same series
  • 1, 3, 5, 7, 9, 11, _, _, _
  • Here, we see that each number is an odd number, and the next number is 2 more than the previous number
  • So, the next 3 numbers will be 13, 15, and 17.
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