Adding decimals in columns
Name: _____________________ Date: __________
Show your thinking with numbers, words, or a drawing.
1. 4.4 + 0.43 = ? (Line up the decimal points.)
2. 5.6 + 0.97 = ? (Line up the decimal points.)
3. 5.4 + 0.06 = ? (Line up the decimal points.)
4. 3.8 + 0.87 = ? (Line up the decimal points.)
5. 1.3 + 0.39 = ? (Line up the decimal points.)
Answer key ยท Adding decimals in columns
1. 4.83
Line up the points: write 4.40 above 0.43.
Add each column from the right to get 4.83.
So 4.4 + 0.43 = 4.83.
2. 6.57
Line up the points: write 5.60 above 0.97.
Add each column from the right to get 6.57.
So 5.6 + 0.97 = 6.57.
3. 5.46
Line up the points: write 5.40 above 0.06.
Add each column from the right to get 5.46.
So 5.4 + 0.06 = 5.46.
4. 4.67
Line up the points: write 3.80 above 0.87.
Add each column from the right to get 4.67.
So 3.8 + 0.87 = 4.67.
5. 1.69
Line up the points: write 1.30 above 0.39.
Add each column from the right to get 1.69.
So 1.3 + 0.39 = 1.69.
Try it together
Fold two equal strips of paper into different numbers of equal parts. Find two fractions that cover the same length.