Question

Toata foaia clasa lv

Answer 1

6) 345x12=4140
7)28x17=476
8) (13x53)+(18x48)+2456=689+864+2456=4009 q cereale
9)
28=mese pe zi
28+19=47 scaune pe zi
31 zile are luna martie
28x31=868 mese
47x31=1457 scaune
868+1457=2325 mese si scaune s-au fabricat in luna martie

10)
(600-180)x9-163x8=420x9-1304=3780-1304=2476
[3x(900-700)+25]x6=(3x200+25)x6=(600+25)x6=625x6=3750
150+(432-108)+15=150+324+15=489
6x(2128-1872)+225=6x256+225=1536+225=1761
356+850-850+7=356+7=363
(65x25-1248)x4-882=(1625-1248)x4-882=377x4-882=1508-882=626

11) (56x23)+(56-23)=1288+33=1321
12) (57x84)-(300+63)=4788-363=4425