Question

4.Transformă și rezolvă: 3200cm+21000mm=.........m 46m+2300cm=...........m 907m+146m=........... dm 7000mm-400cm=...........m​

Answer 1

Răspuns:

1m=10dm=100cm=1000mm

1cm=(1÷100)=0,01m

3200cm=3200÷100=32m

1mm=(1÷1000)=0,001m

21000mm=(21000÷1000)=21 m

32m+21m=53m

2300cm=2300÷100=23m

46m+23m=69m

907m+146m=1053m

1053m=10530dm

1mm=(1÷1000)==0,,001m

1cm=10mm

7000 mm =(7000÷1000)=7m

400cm=(400÷100)= 4 m

7m+4m=11m