Decimals in Expanded Notation

Which of the following describes 34.05?

• (3 x1 0) + (4 x 1) + (5 x 100)

• (3 x 10) + (4 x 1) + (5 x 0.1)

• (3 x 10) + (4 x 1) + (5 x 0.01)

• (3 x 10) + (4 x 1) + (5 x 1)

What notation is missing?

145.9 = (1 x 100) + _____ + (5 x 1) + (9 x 0.1)

• (4 x 10)

• (4 x 1)

• 4 x 0.10)

• (4 x 100)

(5x100) + (4x1) + (7 x 0.1)

• 547

• 504.07

• 540.7

• 504.7

The expanded notation of a number is shown.
(1x10,000) +(8x100) + (5x10) + (3x1)
What is the number in standard form?

• 3,581
• 18,053
• 1,853
• 10,853

John described a number using these clues:

• the value of the digit 5 is (5 x 10)
• the value of the digit 2 is (2 x 100,000)
• the value of the digit 6 is (6 x 0.01)

Which number could fit John's description?

• 432,526.06

• 216,751.06

• 526,327.6

• 256,393.6

The number 913.04 can be expressed as---.

• (9 x 100) + (1 x 10) + (3 x 1) + (4 x 0.1)

• (9 x 100) + (1 x 10) + (3 x 1) + (4 x 0.01)

• (9 x 100) + (1 x 10) + (3 x 0.1) + (4 x 0.01)

• (9 x 100) + (1 x 10) + (3 x 1) + (4 x 100)

Which digit is in the tenths place?
236.47

• 3
• 6
• 4
• 7

The number 39.02 can be expressed as ---.

• (3 x 10) + (9 x 1) + (2 x 0.01)

• (3 x 10) + (9 x 1) + (2 x 0.1)

• (3 x 1,000) + (9 x 1) + (2 x 0.01)

• (3 x 100) + (9 x 10) + (2 x 0.01)

Which statement about the number 63,900.52 is true?

• The digit 5 has a value of (5 x 1).

• The digit 5 has a value of (5 x 10).

• The digit 5 has a value of (5 x 0.01).

• The digit 5 has a value of (5 x 0.1).

In the number 56.32 the 5 has a value of...

• 50 because 5 × 10 = 50

• 5 because 5 × 1 = 5

• 5 tenths because 5 × 0.1 = 0.5

• 5 hundredths because 5 × 0.01 = 0.05