Выразите в миллиметрах: \(\displaystyle 2\) км \(\displaystyle 70\) м \(\displaystyle 2\) дм \(\displaystyle 5\) см \(\displaystyle 1\) мм.
мм
\(\displaystyle 1\) см\(\displaystyle =10\) мм
\(\displaystyle 1\) дм\(\displaystyle =10\) см\(\displaystyle =100\) мм
\(\displaystyle 1\) м\(\displaystyle =10\) дм\(\displaystyle =100\) см\(\displaystyle =1000\) мм
\(\displaystyle 1\) км\(\displaystyle =1000\) м\(\displaystyle =10000\) дм\(\displaystyle =100000\) см\(\displaystyle =1000000\) мм
Имеем:
\(\displaystyle 2\)км\(\displaystyle 70\)м\(\displaystyle 2\)дм\(\displaystyle 5\)см\(\displaystyle 1\)мм\(\displaystyle =2\cdot 1000000+70\cdot 1000+2\cdot 100+5\cdot10+1\cdot 1=\)
\(\displaystyle =2000000+70000+200+50+1=2070251\)мм.
Ответ: \(\displaystyle 2070251\) мм.