Question

100P+❤+⭐+răspuns corect=COROANĂ!​

Answer 1

Răspuns:

                     

Explicație pas cu pas:

1. 40 cm+6 dm=1 m (40 cm+60 cm=100 cm); 6 dm=60 cm

2. 7 km-100 m=69 hm (70 hm-1 hm=69 hm); 100 m=1 hm

3. 18 dam+ 100 cm= 181 m (180 m+1 m=181 m) 18 dam=180 m; 100 cm=1 m

4. 1 km+2 dam=  1020 m (1000 m+20 m=1020 m) 2 dam=20 m

5. 520 cm=2 dm+5 m (20 cm+500 cm=520 cm)  

        2 dm=20 cm; 5 m=500 cm

6. 1 km+2 hm+3 dam=1230 m (1000 m+200 m+30 m=1230 m)

7. 4 dm+10 cm+2 m= 2500 mm (400 mm+100 mm+2000 mm=2500 mm)

         4 dm=400 mm; 10 cm=100 mm; 2 m= 2000 mm