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Module week 3 Q1 part 2
- 6. Frequently Asked Questions What are Natural and Real Numbers? Natural numbers are all the positive integers starting from 1 to infinity. All the natural numbers are integers but not all the integers are natural numbers. These are the set of all counting numbers such as 1, 2, 3, 4, 5, 6, 7, 8, 9, … Are there Real Numbers that are not Rational or Irrational? No, there are no real numbers which are neither rational nor irrational. The definition of real numbers itself states that, it is a combination of both rational and irrational numbers. Is Zero An Even, An Odd Number Or Neither? When we divide 0 by 2, the result we get is also 0. Zero itself is an integer, therefore zero is classified as an even number.
- 8. To add integers having the same sign, keep the same sign and add the absolute value of each number. To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest. Addition of Integers
- 9. 4 + 7 = 11 (-4) + (-7) = -11
- 10. (-4) + 7 = 3 4 + (-7) = -3
- 12. Subtraction of Integers Transform the subtraction of integers problem into the addition of integers problem • First, keep the first number (known as the minuend). • Second, change the operation from subtraction to addition. • Third, get the opposite sign of the second number (known as the subtrahend) • Finally, proceed with the regular addition of integers. CCC – Copy Change Change
- 13. 5 – 4 = 1 5 + (-4) = 1
- 14. (-10) – (-11) (-10) + 11 = -14 (-3) – 11 (-3) + (-11) = 1
- 15. 4 – 9 4 + (-9) = -5
- 17. Multiplication of Integers • The product of a positive integer and a negative integer is negative. • The product of two positive integers is positive. • The product of two negative integers is positive.
- 19. Division of Integers • The quotient of a positive integer and a negative integer is negative. • The quotient of two positive integers is positive. • The quotient of two negative integers is positive.