Round a measured mass of 3.444 to two decimal places and enter the number.
الإجابة الصحيحة
3.44 ± 0.001
الشرح
The thousandths digit is 4, so the hundredths digit remains 4 and 3.444 rounds to 3.44. Producing 3.45 would round up from a deciding digit below 5 or would improperly round in stages.