Question

Scoateti factorul comun si efectuati
24×25+32×11-36×30
511×22+489×22
177×36-177×31-77×5
32+32×15+32×84​

Answer 1

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

Answer 2

$\it 24\cdot25+32\cdot11+36\cdot30=4(6\cdot25+8\cdot11+9\cdot30)=4\cdot408=1632\\ \\ 511\cdot22+489\cdot22=22\cdot(511+489)=22\cdot1000=22000\\ \\ 177\cdot36-177\cdot31-177\cdot5=177\cdot(36-31-5)=177\cdot0=0\\ \\ 32+32\cdot15=32\cdot84=32\cdot(1+15+84)=32\cdot100=3200$