This Math quiz is called 'Number Sequences 4' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is an enjoyable way to learn if you are in the 3rd, 4th or 5th grade - aged 8 to 11.
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Number sequences are lists of numbers that follow patterns. For example, triangle numbers increase by adding 1 then 2 then 3 etc... and square numbers increase by adding 3 then 5 then 7 etc... Learning to spot the patterns enables you to know which numbers are going to come next in any given sequence.
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This sequence is the 21 times table
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Each number (except the first) is 15 more than the ne before it
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The numbers are decreasing in 3s
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The numbers are increasing by 0.5 each time
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Number 2 is added, then 3, then 4, then 5 and so on
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The sequence of triangular numbers goes up much more quickly than an ordinary sequence. Square numbers go up even more quickly
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Even - even = even
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A product is the result of multiplying two or more numbers
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The product of two evens is always even and the product of two odds is always odd
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Even x even = even
Even x odd = even Odd x even = even Odd x odd = odd |