Răspuns :

Răspuns:

Explicație pas cu pas:

3 m + 2000 mm = 3000 mm + 2000 mm = 5000 mm

5000 m + 7 km = 5 km + 7 km = 12 km

980 hm + 78000 m = 98 km + 78 km = 176 km

8 m - 2450 mm = 800 cm - 245 cm = 555 cm

8 m - 155 cm = 800 cm - 155 cm = 645 cm

900 cm - 370 mm = 9000 mm - 370 mm = 8630 mm

8 x 35 hm = 280 hm = 28 km

900 mm : 5 = 180 mm = 18 cm

Răspuns:

3m+2000mm= 3000mm+2000mm= 5000mm

5000m+7km= 5km+7k=12km

980hm+78.000m=98km+78km= 176km

8m-2450mm=80cm-245cm= -165cm

500cm-2m=500cm-200cm=300cm

8m-155cm=800cm-155cm=645cm

900cm-370mm=9000mm-370mm=8630mm

8×35hm=280hm=28km

900mm÷5=180mm=18cm

Iar la prima : 7m+400cm=7m+4m=11m