Question

Multiply of the following numbers by $10,100$ and $1000$ :
(i) $3.9$
(ii) $2.89$
(iii) $0.0829$
(iv) $40.3$
(v) $0.3725$

Answer 1

(i) $3.9$
$3.9\times 10=39$
$3.9\times 100=390$
$3.9\times 1000=3900$
Hence, $39,390$ and $3900$ are the required numbers
(ii) $2.89$
$2.89\times 10=28.9$
$2.89\times 100=289$
$2.89\times 1000=2890.00$
$=2890$
Hence, $28.9,289$ and $2890$ are the required numbers
(iii) $0.0829$
$0.0829\times 10=0.829$
$0.0829\times 100=8.29$
$0.0829\times 1000=82.9$
Hence, $0.829,8.29$ and $82.9$ are the required numbers
(iv) $40.3$
$40.3\times 10=403$
$40.3\times 100=4030$
$40.3\times 1000=40300$
Hence, $403,4030$ and $40300$ are the required numbers
(v) $0.3725$
$0.3725\times 10=3.725$
$0.3725\times 100=37.25$
$0.3725\times 1000=372.5$