Ma puteti ajuta pana la zece



Ma Puteti Ajuta Pana La Zece class=

Răspuns :

1.40:8-4:2=5-2=3
2.30-4*7=30-28=2
3.(253+147):25=400:25=16
4.142:(1+2*35)=142:(1+70)=142:71=2
5.2³+3²-4*=8+9-1=17-1=16
6.0*+3*:3*-9=-9