Review of Whole Numbers.

Frames 1-1 through 1-36.

Pencil, eraser.

After completing this lesson, you should be able to:

1-1. Identify by name each number in given addition, subtraction,

multiplication, and division problems.

1-2. Set up and solve given problems involving addition, subtraction,

multiplication, and division of whole numbers.

1-3. Check given problems involving addition, subtraction, multiplication,

and division of whole numbers.

Work the following exercises (numbered frames) in numerical order. Write

the answer in the space provided in the frame. After you have completed a

frame, check your answer against solution given in the shaded area in the

following frame. The final frame contains review exercises for Lesson 1.

These exercises will help you to achieve the lesson objectives and prepare

for the examination.

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The solution to the

exercise in Frame 1-1 is in

is, the value (amount) of a digit (numeral) depends upon its location in

the shaded area (right side)

the number. Consider a given digit location (its place in the number, not

of Frame 1-2 on the

the value of the numeral itself). The digit location to its immediate left is

following page.

worth ten times as much as the given digit location. The digit place to

the immediate right is worth one-tenth as much. This is called place

value. For example, in the number 456, the "5" tells how many tens

(place value is "10"), the "4" tells how many hundreds (place value is

100, which is 10 x 10) and the 6 tells how many ones (place value is 1,

which is 1/10 x 10). This is sometimes called "the base 10 numbering

system."

The number 456 is equal to

4 x 100

plus 5 x 10

plus 6 x

1

In the number 9724, the digit in the far right tells how many ones (4 x 1).

The second digit tells how many tens (2 x 10). The third digit tells how

many hundreds (7 x 100). The fourth digit tells how many

(9 x

).

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MD0900

1-1

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