Ta có: ( 9x8-12-5x12) x (1+2+3+4+5)

=( 72-12-60) x ( 1+2+3+4+5)

=(60-60) x (1+2+3+4+5)

=0 x (1+2+3+4+5)

=0

Mọi người tk cho mình nha. Mình cảm ơn trước vậy ^.<

(9 x 8 - 12 - 5 x 12) x (1 + 2 + 3 + 4 + 5)

= (72 - 12 - 60) x (1 + 2 + 3 + 4 + 5)

= ( 60 - 60) x (1 + 2 + 3 + 4 + 5)

=      0        x (1 + 2 + 3 + 4 + 5)

=                    0

\(a)\) \(4.126.25=\left(4.25\right).126=100.126=12600\)

a,4x126x25

=(4x25)x126

=100x126

=12600

Kết quả bằng 91

=81+72-64+10-8

=91

35

42

72

27

54

5x7=35

6x7=42

9x8=72

3x9=27

6x9=54

9×8+99999–65×654+8888+12×43–6666=60299

60299

giải ra chi tiết giúp mink với ạ

\(4\times126\times25\\ =\left(4\times25\right)\times126\\ =100\times126\\ =12600\)

\(\left(9\times8-12-5\times12\right)\times\left(1+2+3+4+5\right)\\ =\left(72-12-60\right)\times15\\ =\left(60-60\right)\times15\\ =0\times15\\ =0\)

\(9\cdot8+109\cdot65-87\cdot23+12\cdot12-33\cdot6\)

\(=72+7084-2001+144-198\)

\(=7156-2001+144-198\)

\(=5155+144-198\)

\(=5299-198\)

\(=5101\)

= 72 + 7084 - 2001 + 144 - 198

= 7156 - 2001 + 144 - 198

= 5155 + 144 - 198

= 5299 - 198

= 5101

\(100-10+9\times8:5\times10-8\)

\(=90+9\times\dfrac{8}{5}\times10-8\)

\(=82+\dfrac{9\times8\times10}{5}\)

\(=82+9\times8\times2\)

\(=82+144\)

\(=226\)

100- 10+ 9x8:5x 10- 8

=100- 10+ 72: 5x10-8

=100- 10+ 14,4x10 -8

= 100-10 + 144 -8

=90 + 144 -8

= 234 - 8

=226

9x9=81

9x8=72

9x7=63

9*9=81

9*8=72

9*7=63