Question

15 x 25 x 7 x 4 + 170 x160

Tính nhanh

Answer 1

15 x 25 x 7 x 4 + 170 x 160

= (25 x 4) x (15 x 7) + 170 x 160

= 100 x 105 + 27200

= 10500 + 27200

= 37700

Answer 2

15 x 25 x 7 x 4 + 170 x 160

= ( 25 x 4 ) x ( 15 x 7 ) + 27200

= 100 x 105 + 27200

= 10500 + 27200

= 37700

Tk nha!!

Answer 3

\(15\times25\times7\times4+170\times160\)

\(=\left(25\times4\right)\times\left(15\times7\right)+170\times160\)

\(=100\times105+170\times160\)

\(=10500+27200\)

\(=37700\)