Chapter 1 Working with Whole Numbers

  • Chapter 1

    Chapter Objective:

    * Read, compare, and order numbers according to the place value of their digits. Also, learn to add and subtract multi-digit numbers.


    Digit - One of the ten number symbols. Ex: 0,1,2,3,4,5,6,7,8,9.

    Place value - The value of a digit depending on its position in a number, such as ones, tens, hundreds, thousands, or ten thousands.

    Compare - Examine two or more values to see which is greater or less.

    Number pattern - A sequence of numbers formed by a certain number relationship. Ex: 2, 4, 8, 16. The pattern is to double each number to get the next correct number in this particular pattern.

    Place-value chart - A place-value chart shows the value of each digit in a number.

    Ten thousand - 10 thousands = 1 ten thousand = 10,000

    Hundred thousand - 100 thousands = 10 ten thousands = 100,000

    Standard form - The standard form of a number shows the numbers written as numerals. Standard form shows the number written with one digit for each place value. Ex: forty-two thousand, eight hundred three in standard form is 42,803.