Multiply and Divide by Powers of 10

Front

What is expanded form?

Back

Expanded form is a way of writing numbers to show the value of each digit. For example, 9.83 in expanded form is (9 x 1) + (8 x 1/10) + (3 x 1/100).

Tags

CCSS.5.NBT.A.3A

Front

How do you multiply a number by 10?

Back

To multiply a number by 10, you move the decimal point one place to the right. For example, 2.5 x 10 = 25.

Tags

CCSS.5.NBT.A.2

Front

How do you divide a number by 10?

Back

To divide a number by 10, you move the decimal point one place to the left. For example, 25 ÷ 10 = 2.5.

Tags

CCSS.5.NBT.A.2

Front

What is the value of 10^2?

Back

10^2 equals 100.

Tags

CCSS.6.EE.A.1

Front

What is the value of 10^3?

Back

10^3 equals 1000.

Tags

CCSS.5.NBT.A.2

Front

What is the pattern in the sequence: 4000, 400, 40, 4?

Back

The pattern is that each number is divided by 10.

Tags

CCSS.5.NBT.A.2

Front

How do you write 324.506 in expanded form?

Back

324.506 in expanded form is (3 x 100) + (2 x 10) + (4 x 1) + (5 x 1/10) + (6 x 1/1000).

Tags

CCSS.5.NBT.A.3A

Front

What is standard form?

Back

Standard form is a way of writing numbers using digits. For example, 324.506 is in standard form.

Tags

CCSS.5.NBT.A.3A

Front

What does multiplying by a power of 10 do to a number?

Back

Multiplying by a power of 10 increases the value of the number by moving the decimal point to the right.

Tags

CCSS.5.NBT.A.2

Front

What does dividing by a power of 10 do to a number?

Back

Dividing by a power of 10 decreases the value of the number by moving the decimal point to the left.

Tags

CCSS.5.NBT.A.2