All Operations with Decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It represents a part of a whole number using a decimal point, such as 0.5 or 3.14.

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 process for subtracting decimals?

Back

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

Tags

CCSS.5.NBT.B.7

Front

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both factors and place the decimal point in the product accordingly.

Tags

CCSS.6.NS.B.3

Front

What is the rule for dividing decimals?

Back

To divide decimals, move the decimal point in the divisor to make it a whole number, then move the decimal point in the dividend the same number of places. Divide as usual.

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Front

Calculate: 2.5 x 6.7

Back

16.75

Tags

CCSS.6.NS.B.3

Front

Calculate: 13.5 ÷ 5

Back

2.7

Tags

CCSS.6.NS.B.3

Front

What is the sum of 18.8 + 261.04?

Back

279.84

Tags

CCSS.6.NS.B.3

Front

Calculate: 860.4 + 4.04

Back

864.44

Tags

CCSS.6.NS.B.3

Front

Calculate: 3.28 ÷ 8

Back

0.41

Tags

CCSS.5.NBT.B.7