Question

Calculati si apoi completati spatiule punctate;32 km patrati + 12,7 hm patrati - 270 dam patrati =... hm patrati
Va rog frumos ajutati-ma am nevoie urgent!!!

Answer 1

32km^2=3200hm^2
270dam^2=2,7hm^2
3200hm^2-12,7hm^2=3187,3hm^2
3187,3hm^2+2,7hm^2=3190hm^2
^2 înseamnă la puterea a doua

Answer 2

Km, hm, dam, m, dm, cm, mm

$32Km^{2}~=~?~hm^{2}$
$32Km^{2}~=~{1~salt~spre~dreapta,~dar~pentru~ca~e~la~puterea~2,~este~\cdot2}=3200hm^{2}$

$270dam^{2}~=~?~hm^{2}$
$270dam^{2}~=~{1~salt~spre~stanga,~dar~pentr~ca~este~la~puterea~2,~este~\cdot2=2,7hm^{2}$

$3200^{2}+12,7^{2}-2,7^{2}=~ai~in~imagine$

$~~ \\ ~~$
$3200^{2}=3200\cdot3200=10240000 \Rightarrow ~ exagerat,~si~l-am~lasat~3200^{2}$