Underwater Math: Expanded Notation Quiz

What is the expanded notation for the number 439?

• 4 x 1 + 3 x 10 + 9 x 100

• 4 x 10 + 3 x 1 + 9 x 0.1

• 4 x 100 + 3 x 10 + 9 x 1

• 4 x 1000 + 3 x 100 + 9 x 10

How do you express the decimal 0.276 in expanded notation?

• 2 x 0.01 + 7 x 0.001 + 6 x 0.1

• 2 x 0.1 + 7 x 0.01 + 6 x 0.001

• 2 x 1 + 7 x 0.1 + 6 x 0.01

• 2 x 0.001 + 7 x 0.01 + 6 x 0.1

What should you do if a digit is missing in a place value when converting from expanded notation?

• Leave it blank

• Use a zero

• Use a placeholder

• Skip the place value

Which digit is in the tenths place in the number 8.504?

• 8

• 5

• 0

• 4

What is the numeral for the expanded notation: 8 x 1 + 5 x 0.1 + 4 x 0.001?

• 8.045

• 8.405

• 8.054

• 8.504