Вырази в квадратных сантиметрах.
2 $м^2$;
6 $дм^2$;
70 $дм^2$;
30 $м^2$;
209 $дм^2$;
5 $дм^2$ 1 $см^2$;
4 $м^2$ 7 $см^2$;
20 $дм^2$ 80 $см^2$.

2 $м^2$ = (2 * 10000) $см^2$ = 20000 $см^2$;
6 $дм^2$ = (6 * 100) $см^2$ = 600 $см^2$;
70 $дм^2$ = (70 * 100) $см^2$ = 7000 $см^2$;
30 $м^2$ = (30 * 10000) $см^2$ = 300000 $см^2$;
209 $дм^2$ = (209 * 100) $см^2$ = 20900 $см^2$;
5 $дм^2$ 1 $см^2$ = (5 * 100 + 1) $см^2$ = (500 + 1) $см^2$ = 501 $см^2$;
4 $м^2$ 7 $см^2$ = (4 * 10000 + 7) $см^2$ = 40007 $см^2$;
20 $дм^2$ 80 $см^2$ = (20 * 100 + 80) $см^2$ = (2000 + 80) $см^2$ = 2080 $см^2$.