Adding and Subtracting Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal representation of 5/10.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Tags

CCSS.5.NBT.B.7

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Tags

CCSS.5.NBT.B.7

Front

What is the 'ghost decimal'?

Back

The 'ghost decimal' refers to the implied decimal point in whole numbers. For example, in the number 24, the ghost decimal is behind the 4, making it 24.0.

Tags

CCSS.5.NBT.B.7

Front

Calculate: 9.43 - 3.34

Back

6.09

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CCSS.6.NS.B.3

Front

Calculate: 123.6 - 0.08

Back

123.52

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CCSS.6.NS.B.3

Front

If a ticket costs $3.00 and you buy 2 tickets, how much do you spend?

Back

$6.00

Tags

CCSS.3.OA.A.3

Front

Lia spent $8.50 on snacks. If she spent $3.00 on tickets, how much did she spend in total?

Back

$11.50

Tags

CCSS.6.NS.B.3

Front

Nathan's ticket cost $3.75. If the adult's ticket was $5.75, what was the total cost for both tickets?

Back

$9.50

Tags

CCSS.6.NS.B.3

Front

What is the sum of 12.5 and 7.3?

Back

19.8

Tags

CCSS.6.NS.B.3