Question

Verifica egalitatile si scrie in casete A daca sunt adevarate sau F daca sunt false.
876+624:24-1900:100+117=34×68-1000:8:5-120×9-207.A sau F
2100-95×9+80:8-560=75×32+1612:26×13-25×100-11.A sau F
Va rog din toata inima sa ma ajutati.

Answer 1

1)876+624:24-1900:100+117
=876+26-19+117
=902-19+117
=883+117
=1000
34×68-1000:8:5-120×9-207
=2312-125:5-1080-207
=2312-25-1080-207
=2287-1080-207
=1207-207
=1000
=> (A)
2)2100-95×9+80:8-560
=2100-855+10-560
=1245+10-560
=1255-560
=695
75×32+1612:26×13-25×100-11
=2400+62×13-2500-11
=2400+806-2500-11
=3206-2500-11
=706-11
=695
=> (A)