BBC2 年
Adding decimals with a different number of decimal places
Moving to the hundredths column ... making sure each digit is in the correct column based on its place value and that the decimal points are directly underneath one another.
BBC3 个月
Adding decimals with a different number of decimal places
Moving to the hundredths column ... making sure each digit is in the correct column based on its place value and that the decimal points are directly underneath one another.