Question

how many. centimeters should be added to 983mm to make a metre

Answer 1

●We know that:

$1cm = 10mm \\ 1mm = \frac{1}{10} cm \\ 10mm = 1cm$

$so \: 983mm = \frac{983}{10} cm = 98.3cm$

●We also, know that,

$1m = 100cm$

$so \: we \: should \: subtract \: 983mm \: i.e. \: 98.3 \: from \: 100cm \: i.e. \: 1m \: to \: find \: the \: number \: of \: cm \: to \: be \: added \: to \: 983mm.$

$100 - 98.3 = 1.7cm = 17mm$


★Therefore, 1.7 cm should be added to 983 mm to make it a metre.