Gujarat Board GSEB Textbook Solutions Class 8 Maths Chapter 1 Rational Numbers InText Questions and Answers.

## Gujarat Board Textbook Solutions Class 8 Maths Chapter 1 Rational Numbers InText Questions

Try These (Page 4)

Question 1.

Fill in the blanks in the following table:

Solution:

Using the closure property over addition, subtraction, multiplication and division for rational numbers, integers, whole-numbers and natural numbers, we have:

Try these (page 6)

Question 1.

Complete the following table:

Solution:

Try these (page 9)

Question 1.

Complete the following table:

Solution:

Try these (page 11)

Question 1.

If a property holds for rational numbers, will it also hold for integers? For whole numbers? Which will? Which will not?

Solution:

- Any property which is true for rational numbers, is also true for integers except for any integers â€˜aâ€™ and â€˜bâ€™, (a + b) is not necessarily an integer.
- All properties which are true for rational numbers, are also true for whole numbers except:
- For â€˜aâ€™ and â€˜bâ€™ being whole numbers, (a – b) may not be a whole number.
- For â€˜aâ€™ and â€˜bâ€™ being whole numbers (b â‰ 0), a + b may not be a whole number.

Try these (page 13)

Question 1.

Find using distributivity?

(i) \(\left\{\frac{7}{5} \times\left(\frac{-3}{12}\right)\right\}+\left\{\frac{7}{5} \times \frac{5}{12}\right\}\)

(ii) \(\left\{\frac{9}{16} \times \frac{4}{12}\right\}+\left\{\frac{9}{16} \times \frac{-3}{9}\right\}\)

Solution:

Try these (page 17)

Question 1.

Write the rational number for each point labelled with a letter?

Solution:

(i) Here, the rational number for the point A is \(\frac{1}{5}\)

The rational number for the point B is \(\frac{4}{5}\). The rational number for the point C is \(\frac{5}{5}\) or 1.

The rational number for the point D is \(\frac{8}{5}\). The rational number for the point E is \(\frac{9}{5}\).

(ii) The rational number for:

The point F is \(\frac{-2}{6}\) or –\(\frac{1}{3}\). The point G is \(\frac{-5}{6}\). The point H is \(\frac{-7}{6}\)

The point I is \(\frac{-8}{6}\) 0r \(\frac{-4}{3}\). The point J is \(\frac{-11}{6}\).