Approximation Worksheet



Approximation Worksheet

1 Complete the following tables by rounding the numbers to the given degree of accuracy

|Number |Round off to nearest |Round off to nearest 100|Round off to nearest 10 |Round off to nearest |

| |1000 | | |whole number |

|6 412.56 | | | | |

|3 575.45 | | | | |

|7 777.77 | | | | |

|12 456.8 | | | | |

|24 675.2 | | | | |

|55 555.55 | | | | |

|123 456.78 | | | | |

|34 000.1 | | | | |

|9 999.9 | | | | |

2 Complete the following table by rounding the numbers to the given degree of accuracy

|Number |Round off to 1 decimal |Round off to 2 decimal |Round off to 3 decimal |Round off to 4 decimal |

| |place |places |places |places |

|0.123456 | | | | |

|0.56789 | | | | |

|0.05732 | | | | |

|6.666666 | | | | |

|12.83507 | | | | |

|57.575757 | | | | |

|3.14159 | | | | |

|123.987654 | | | | |

|0.005678 | | | | |

3 Complete the following tables by rounding the numbers to the given degree of accuracy

|Number |Round off to 1 |Round off to 2 |Round off to 3 |Round off to 4 |

| |significant fig |significant fig |significant fig |significant fig |

|26 895 | | | | |

|32.45653 | | | | |

|156.9823 | | | | |

|459 789.234 | | | | |

|293.40235 | | | | |

|375.00876 | | | | |

|0.00023986 | | | | |

|1.002568 | | | | |

|563 282 | | | | |

4 Complete the following tables by rounding the numbers to the given degree of accuracy. READ THE COLUMN HEADINGS CAREFULLY. THIS IS A MIXED EXERCISE.

|Number |Round off to 1 |Round off to nearest 100|Round off to 2 decimal |Round off to nearest |

| |significant fig | |places |whole number |

|756.278 | | | | |

|1 298.925 | | | | |

|32 555.555 | | | | |

|10 345.826 | | | | |

|29 456.0056 | | | | |

|333.333 | | | | |

|55 055.5657 | | | | |

|10 004.285 | | | | |

|999.999 | | | | |

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