=100 nha

= 100 nha

Bằng 100

\(9+9\times3+18:2\times6\\ =9+9\times3+\left(18:2\right)\times6\\ =9+9\times3+9\times6\\ =9\times\left(1+3+6\right)\\ =9\times10\\ =90\)

_{9 + 9 x 3 + 18 : 2 x 6}

_{= 9 + 9 x 3 + 9 x 6}

_{= 9 x ( 3 + 6 + 1)}

_{= 9 x 10}

_{= 90}

  1x5+2x6+3x7+4x8+...+50x54

=(1+2+3+4+...50)x(5+6+7+78+...+54)

=1275x1269=1617975

2 x 3 + 2 x 6 + 2 x 1

= 6 + 12 + 2

= 18 + 2

= 20

2 x 3 + 2 x 6 + 2 x 1

= 6 + 12 + 2

= 8 + 12

= 20 

2x3+2x6+2x1= 6+12+2=20

1

12

42

K NHA

1x1=1

2x6=12

7x6=42

1.1=1

2.6=12

7.6=42

bạn lấy hình Ganga trong phim ở đâu hay vậy?

2 x 6 - 2 + 3 - 1 - 1 - 1 + 5 = 15

2 x 6 - 2 + 3 - 1 - 1 - 1 + 5

= 12 - 2 + 3 - 1 - 1 - 1 + 5

= 10 + 3 - 1 - 1 - 1 + 5

= 13 - 1 - 1 - 1 + 5

= 12 - 1 - 1+ 5

= 11 - 1 + 5

= 10 + 5

= 15

2 x 6 - 2 + 3 - 1 - 1 - 1 + 5

= 12 - 2 + 3 - (1 + 1 + 1) + 5

= 10 + 3 - 3 + 5

= 10 + 5

= 15

Chọn D