Răspuns :
4). ( 3 + 7 ) + 7 × 3 = 10 + 21 = 31
5). 5 × 10 = 50 cutii ( bulion )
4 × 8 = 32 sticle ( ulei )
50 + 32 = 82 ( in total )
6). aici n am imteles bine . Lipsesc cuvinte din enunț.
7). a). 8 × 2 - 3 × 4 = 16 - 12 = 4
b). ( 7 + 10 ) + 6 × 5 = 17 + 30 = 47
c). ( 81 - 23 ) - ( 5 × 7 ) = 58 - 35 = 23
d). 9 × 7 + 5 × 7 = 63 + 35 = 98
Răspuns:
4)
a=3x7+3+7
a=21+3+7
a=31
5)
5x10+4x8=50+32=82
6)
ai scris bine enunțul?
7)
a) 2x8-3x4=16-12=4
b)( 7+10)+6x5=17+30=47
c)(81-23)-(5x7)=58-35=23
d)9x7+5x7=63+35=98