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ADDING & SUBTRACTING DECIMALS

Line up decimal points to add and subtract decimals accurately.

L5L6
CS.N.5.3(V)
Section 1 / 2
ADDING DECIMALS

The golden rule for adding decimals: line up the decimal points! Add trailing zeros if needed so both numbers have the same decimal places. Then add as normal, bringing the decimal point straight down into the answer.

2.3 + 1.45
1Line up decimal points
22.30 + 1.45
3= 3.75
= 3.75

LEADER TIP

Grid paper helps students line up decimal points correctly. Always estimate first to catch column-alignment errors.

BEFORE THIS LESSON, TRY

⚖️Comparing Decimals🏗️Place Value Addition

PRACTICE WITH THESE GAMES

🔢Decimal Operations💰Money Math🔢Quick Calculate

Want more practice? Generate printable worksheets with similar problems.

Go to Worksheets

CONTINUE WITH:

✖️Multiplying & Dividing Decimals🏷️Discounts & Tax

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