Related Questions

When posed with a problem on subtraction, '400 - 45', a student responded. “If it were 40, then the answer would be 60, but its 45 so its 55, 155, 255, 355, therefore, 400 - 45 is 355.” Which one of the following statements is correct for the strategy used by the student?
দশ গ্রাম এ্যকুয়ারিজিয়া তৈরীতে HNO3 এর পরিমাণ প্রয়োজন?