Răspuns :
Răspuns:
Explicație pas cu pas:
a)
24×25+32×11-36×30=
4×6×25+4×8×11-4×9×30=
4(150+88-270)=
4(238-270)=
4×(-32)=-128
b)
511×22+489×22=
22(511+489)
22×1000=22000
c)
177×36-177×31-177×5=
177(36-31-5)=
177×0=
0
d)
32+32×15+32×84=
32(1+15+84)
32×100=
3200
[tex]\it 24\cdot25+32\cdot11+36\cdot30=4(6\cdot25+8\cdot11+9\cdot30)=4\cdot408=1632\\ \\ 511\cdot22+489\cdot22=22\cdot(511+489)=22\cdot1000=22000\\ \\ 177\cdot36-177\cdot31-177\cdot5=177\cdot(36-31-5)=177\cdot0=0\\ \\ 32+32\cdot15=32\cdot84=32\cdot(1+15+84)=32\cdot100=3200[/tex]