Round a rainfall reading of 0.646 to two decimal places and enter the number.
الإجابة الصحيحة
0.65 ± 0.001
الشرح
The thousandths digit is 6, so the hundredths digit 4 increases to 5 and the rounded reading is 0.65. Keeping 0.64 would ignore that the deciding digit is greater than 4.