Q5 of 124 Page 25

Represent geometrically on the number line.

Let’s draw a line AB = 3.2 units


Extend this line from B to C by 1 unit.


Now find the mid-point M of AC.


Take M as the center and MA as radius draw a semicircle.


Draw BD ⟘ AC intersecting the semi circle at D.


Then BD =


With B as center and BD as radius, draw an arc, meeting AC produced at E.


Then BE = BD =



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3

Divide:

(i) (ii)


(iii)

4

Simplify:

(i)


(ii)


(iii)


(iv)


(v) (vi)

6

Represent geometrically on the number line.

 7

Mention the closure property, associative law, commutative law, existence of identity, existence of inverse of each real number for each of the operations

(i) addition (ii) multiplication on real numbers.