Add, Subtract, Multiply, and Divide 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. For example, 3.14 is a decimal.

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 numbers 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 the right until it is 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

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around it, calculated by adding the lengths of all four sides or using the formula: P = 2(length + width).

Tags

CCSS.4.MD.A.3

Front

How do you find the difference between two decimal numbers?

Back

To find the difference, subtract the smaller decimal from the larger decimal, ensuring the decimal points are aligned.

Tags

CCSS.5.NBT.B.7

Front

What is the value of 1.2 times 14.7?

Back

1.2 times 14.7 equals 17.64.

Tags

CCSS.6.NS.B.3

Front

If you have 48 cookies and 14 students, how many cookies does each student get?

Back

Each student gets 3 cookies, and Mr. T gets 6 cookies.

Tags

CCSS.4.NBT.B.6

CCSS.5.NBT.B.6

Front

What is the total cost of items priced at $2.65, $4.95, $3.49, and $6.89?

Back

The total cost is $17.98.

Tags

CCSS.6.NS.B.3