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সপ্তম শ্রেণী
Math
Rational and Irrational Numbers
Some Important Points on Squares and Square Roots
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Multiple Choice - Multiple Correct Answers
Using the dot method, identify the number of digits in the square root of 1234321.
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One digit
Two digits
Three digits
Four digits
Which of these sets only includes non-perfect square numbers?
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{4, 16, 25}
{2, 3, 8}
{5, 18, 20}
{9, 36, 49}
Which of the following methods can determine the square root of a number?
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Thermometer method
Factorization
Division method
Subtraction method
Which of these numbers are irrational?
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$ \sqrt{4} $
$ \sqrt{2} $
3.14
$ \sqrt{9} $
Identify the true statements about rational and irrational numbers.
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A rational number can be expressed as a fraction.
Irrational numbers have repeating decimal digits.
All integers are rational numbers.
The square root of a non-perfect square is irrational.
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