Question

Find
(i) $7.9÷1000$
(ii) $128.9÷10$

Answer 1

We know that dividing any decimal by multiples of $10$ by shifting decimal towards left on the basis of the number of zeros in it.

(i) $\frac{7.9}{1000}=0.0079$ [shifting decimal for $3$ places towards left]

(ii)$\frac{128.9}{10}=12.89$ [shifting decimal for $1$ place towards left]