6 x 5 2 10 x 5 July 8, 2019 16 32 64 128 X 6 x 5 10 x 2 25 5 4 10 x 5 6 x 5 2 1 X 2 5 x 6 30 x 4 10 x 5 15 5 2 √ 6 x 5 2 √ 6 x 10 6 5 x 10 2 )- 5 5 x 10 3 10 6 x 2 5 9 5 x 3 7 6 5 x 3 2 9 10 x 3 10 x 5 5.2 x 10 2 )( 6 x 10 5 If 5 x 2 )= 5x 10 then 6 x 3 )= Bài 5 tính nhanh 6 x 10 x 5 x 2
