Question

Va rog ajutati-ma!!!!!!!!!!!
Ex:3,4,5

Va implor ajutati-ma!!!!!!!!
Primesc nota!!
Am nevoie de raspuns repejor!!
Maine dau test!
Dau coroana!

Answer 1

3)390 dm=3b900 cm
960 cm=96 dm
900 cm=9 dm
800 mm=8 dm
320 dm=32 000 cm
700 mm=7 dm
30 m=30 000 mm
19 m=19 000 mm
12 000 mm=12 m
1 900 cm=19 m
307 m=30 700 cm
3 600 cm=36 m
4)125 m=1 250 dm=12 500 cm=125 000 mm
12 000 mm=12 m=120 dm=1 200 cm
7600 cm=76 m=760 dm=76 000 mm
5)a)305 m-17 000 mm+430 dm=... m
17 000:1000=17 =>17 000 mm=17 m
430 :10=43=>430 dm=43 m
305 m-17 m+43 m=331 m
b)600 mm-25 cm+3 m=... cm
600:10=60 =>600 mm=60 cm
3 ×100=300 =>3 m=300 cm
60 cm-25 cm+300 cm=335 cm
c)960 cm-6 m+58 dm-1 200 mm=...dm
960:10=96 =>960 cm=96 dm
6×10=60 =>6 m=60 dm
1 200:100=12 =>1 200 mm=12 dm
96 dm-60 dm+58 dm-12 dm=82 dm
d)800 m-2 700 cm-3 500 dm+7 000 mm=... m
2 700:100=27 =>2700 cm=27 m
3 500:10=350 =>3500 dm=350 m
7 000:1000=7 =>7000 mm=7 m
800 m-27 m-350 m+7 m=430 m