222 x 5 = 111 x 2 x 5 = 1110
3 x 125 x 2 x 8 = (3 x2 ) x (125 x 8) = 6000
342 x 5 = 340 + 2 x 5 = 340 x 10 = 3400
25 x 8 x 9 = (25 x 4) x (4 x 9) = 100 x 36 = 3600
Đúng hay sai
222 x 5 = 111 x 2 x 5 = 1110
=> Đúng
3 x 125 x 2 x 8 = (3 x2 ) x (125 x 8) = 6000
=> Đúng
342 x 5 = 340 + 2 x 5 = 340 x 10 = 3400
=> Sai
ay sai?25 x 8 x 9 = (25 x 4) x (4 x 9) = 100 x 36 = 3600
=> Sai