Răspuns :
7,45 m2= 7,45 x10000= 74500 cm 2
4,52 dm2= 4,52 x100 = 452 cm 2
74500-452+72,5= 74120,5 cm 2
37,01 m2= 37,01x10000= 370100 cm2
21,57 dm2= 21,57 x100 = 2157 cm2
1234 mm2= 1234:100= 12,34 cm2
370100-2157-12,34=367930,66 cm2
4,52 dm2= 4,52 x100 = 452 cm 2
74500-452+72,5= 74120,5 cm 2
37,01 m2= 37,01x10000= 370100 cm2
21,57 dm2= 21,57 x100 = 2157 cm2
1234 mm2= 1234:100= 12,34 cm2
370100-2157-12,34=367930,66 cm2