ADDING & SUBTRACTING DECIMALS

Line up decimal points to add and subtract decimals accurately.

L5L6

CS.N.5.3·Operations with decimal numbers(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

ADDING & SUBTRACTING DECIMALS

What would you like to share?

ADDING & SUBTRACTING DECIMALS