Adding and Subtracting decimals

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part.

Tags

CCSS.2.MD.B.6

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

What is the sum of 35.61 and 12.93?

Back

48.54

Tags

CCSS.6.NS.B.3

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified place value, making it simpler but keeping it close to the original value.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 26.541 to the nearest whole number.

Back

27

Tags

CCSS.5.NBT.A.4

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 9.43 minus 3.34?

Back

6.09

Tags

CCSS.6.NS.B.3

Front

If Tony ran 4.8 miles and James ran 2.75 miles, how do you find out how much farther Tony ran?

Back

Subtract James's distance from Tony's distance: 4.8 - 2.75 = 2.05 miles.

Tags

CCSS.6.NS.B.3

Front

What is the difference between 4.8 and 2.75?

Back

2.05 miles

Tags

CCSS.5.NBT.B.7

Front

What is the sum of 21 and 4.09?

Back

25.09

Tags

CCSS.6.NS.B.3