<span><span>1) 1 км2 = 1 000 000 м2</span></span>
<span><span>13 км2 720 м2 = 13 000 720 м2</span></span>
<span><span>
</span></span>
<span><span>2) 1 дм2 = 100 см2 = 10 000 мм2</span></span>
<span><span>64дм2 = 640 000 мм2</span></span>
<span><span>
</span><span> 3) 1 м2 = 10 000см2</span></span>
<span><span>8м2 54см2 = 80 054 см2</span></span>
<span><span>
</span> 4) 1 см2 = 100 мм2</span>
<span>46см2 = 4600 мм2</span>