Tuesday, June 21, 2011

Practice problems for homework 1 of Summer 2011.

Change these numbers in Hindu-Arabic to Roman numerals.

648 = ______

15,781 = _____

Change these numbers in Roman numerals to Hindu-Arabic.
__
IXCDXLVII = ____

DCXCIV = ____

Find the approximation of 7/37 to the following number of decimal places and find the exact repeating decimal representation.

7/37 to the nearest tenth = _____
7/37 to the nearest hundredth = _____
7/37 to the nearest thousandth = ____

Repeating decimal representation = _____

Find the prime factorization of 48.

Find all the factors of 48.


Answers in the comments.
at

1 comment:

  1. Prof. HubbardJune 21, 2011 at 4:37 PM

    Change these numbers in Hindu-Arabic to Roman numerals.

    648 =
    DCXLVIII
    ===

    15,781 =
    __
    XVDCCLXXXI
    ===

    Change these numbers in Roman numerals to Hindu-Arabic.
    __
    IXCDXLVII =
    9,447
    ===

    DCXCIV =
    694
    ===

    Find the approximation of 7/37 to the following number of decimal places and find the exact repeating decimal representation.

    7/37 to the nearest tenth =
    .2
    ===

    7/37 to the nearest hundredth =
    .19
    ===

    7/37 to the nearest thousandth =
    .189
    ===


    Repeating decimal representation =
    ___
    .189
    ===


    Find the prime factorization of 48.

    48 = 2 x 2 x 2 x 2 x 3
    or 48 = 2^4 x 3

    ===

    Find all the factors of 48.

    All the factors of 48 in pairs.

    1 and 48
    2 and 24
    3 and 16
    4 and 12
    6 and 8

    ===

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