Approximation & Estimation Skills

Round 456.789 to the nearest whole number.

• 455

• 457

• 460

• 450

Round 789.123 to the nearest tenth.

• 789.1

• 789.0

• 789.2

• 789.3

How many significant digits are there in the number 5000?

• 3

• 5

• 4

• 6

Round 1234.56789 to the nearest hundredth.

• 1234.56

• 1234.60

• 1234.58

• 1234.57

Identify the significant digits in the number 7000.

• 7

• 70

• 7000

• 700

Round 9876.54321 to the nearest thousand.

• 10000

• 9500

• 10500

• 9000

How many significant digits are there in the number 0.000890?

• 1

• 5

• 3

• 4

Round 345.678 to the nearest hundredth.

• 345.68

• 345.66

• 345.69

• 345.67

Identify the significant digits in the number 89000.

• 80000

• 8900

• 89000

• 90000

Round 2345.6789 to the nearest tenth.

• 2345.5

• 2345.6

• 2346.0

• 2345.7