Respuesta :
810 strands of hair is lost in 9 days
(8x10= 80, 80x9=720)
count on your fingers (ONLY WHEN MULTIPLYING BY 9) and then put the finger down that you're multiplying 9 by and then look at the fingers around it. (7 and 2 then since its 80 add a 0!)
(8x10= 80, 80x9=720)
count on your fingers (ONLY WHEN MULTIPLYING BY 9) and then put the finger down that you're multiplying 9 by and then look at the fingers around it. (7 and 2 then since its 80 add a 0!)