In adding decimal numbers, make sure that the decimal points are aligned. Since each number has different counts of numbers after the decimal point, use 0 to pad the missing places.
4.290 97.200 <u> 0.687 </u> 102.177
The count of numbers after the decimal point is the same count of number of the decimal who has the greatest count of number after the decimal point.
4.29 only has 2 counts of places after the decimal point 97.2 only has 1 count of place after the decimal point 0.687 has 3 counts of places after the decimal point.
The sum of the decimals must also have 3 counts of places after the decimal point.
John has a sheet of paper that is 8 feet long. He cuts the length of paper into eighths, and then cuts the length of each of these pieces into fourths. How many pieces does he have? How many inches long is each piece?
