Question

Represent the following numbers on the number line 7, 7.2, $\frac{-3}{2}$ and $-\frac{12}{5}$

Answer 1

Firstly, we draw a number line whose mid-point is O. Marks positive numbers on the right-hand side of 0 and the negative number on the left-hand side of 0.

(i) Number 7 is a positive number. So we mark a number 7 on the right-hand side of 0, which is a 7 units distance from zero.
(ii) Number 7.2 is a positive number. So, we mark a number 7.2 on the right-hand side of O which is 7.2 units distance from zero.
(iii) Number $-\frac{3}{2}$ or -1.5 is a negative number. So, we mark a number 1.5 on the left-hand side of 0, which is at 1.5 units distance from zero.
(iv) Number $-\frac{12}{5}$ or -2.4 is a negative number. So we mark a number 2.4 on the left-hand side of 0, which is at 2.4 units distance from zero.