Decimal Rounding and Place Value

Which decimal shows thirty-four hundredths?

• 0.34

• 34

• 100

• 3.4

When rounding 21.56793

to three decimal places, what is the critical digit?

• 5

• 6

• 7

• 9

• 3

Answer explanation

7 is in the third decimal place, so the number on its right, 9 is the critical digit as it decides if you need to round up or down.

Which decimal shows three tenths?

• 0.3

• 3.3

• 0.03

• 3.0

Round 13.98 to the nearest tenths.

• 13.0

• 14.0

• 13.9

• 14.9

Round the decimal to the nearest tenth: 0.492

Round the decimal to the nearest hundredth: 0.492

Which number has a 2 in the hundredths place?

• 625.342

• 189.456

• 732.326

• 98.234

What is the standard form for this number: 3x100 + 2x10 + 4x1 + 3(1/10) + 2(1/100)

• 342.23

• 23.423

• 324.32

• 32,432

Round to the nearest hundredth.
77.538

• 77.5

• 77.6

• 77.53

• 77.54

Round to the nearest tenth.
3.72

• 4

• 3

• 3.7