Question #29e52

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Answer 1 · 2018-01-12T03:28:43

$280 mm$ $"280 mm"$

The order is such:

$dm > cm > mm$ $"dm " > " cm " > " mm"$

$1 dm = 10 cm = 100 mm$ $"1 dm = 10 cm = 100 mm"$

From this, you know that

$1 dm = 100 mm$ $"1 dm = 100 mm"$

In other words, to go from $dm$ $"dm"$ to $mm$ $"mm"$ you must multiply the number of $dm$ $"dm"$ by $100$ $100$ .

Knowing this, we do $2.8 dm \times 100$ $"2.8 dm" xx 100$ , which gives you $280 mm$ $"280 mm"$ .