1. a)7,4 hm²=7400 m²=>74 m²<7,4 hm²
b)39 ari=0,39 m²
39 dam²=0,39 m²
39 dam²=39 ari
c)3,5 m²=350 m²=>3,5 m²>3,49 hm²
d)7300 cm²=73dm²=>7300 cm²<730 dm²
e)2,5 km²=250 hm²=>2,5 km²<250,2hm²
f)0,05 dam²=500 dm²=>0,05 dam²=500 dm²
2. a)x+250cm²= 15dm²
x=1500 cm²-250 cm²=1250 cm²
b) 421 1000mm²+ x=9m²
x=9m²-4,211 m²=4,789 m²
c) 2.x+3m²=2,03dam²
2x=203 m²-3m²
2x=200m²
x=100 m²
d)64000cm²:x=8m²
x=8m²:6,4m²=1,25
e) 1700m²+x =29dm²
x=29 dm²-170000 dm²=-169971dm²
f)0,5km²-x=4500dam²
x=50 hm²-45 hm²=5 hm²