6th Grade Math Textbook, Fundamentals

No millions.

658,299 is

least.

6 6 and 5  5

9  7

So 1,659,816

is greatest.

9 9 and 4  4

8  5

So 1,657,948 1,657,945.

A review of prerequisite skills necessary to understand the
skills and concepts of Fundamentals of Algebra

I. Place Value

The digits and the position of each digit in a number determine the

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

digit and helps you read and write numbers. The place value of each

place is 10 times greater than the place immediately to its right.

The 4 is in the ten-thousands place and has a value of 4 10,000, or 40,000.

The number 41,008.9 is read “forty-one thousand eight and nine tenths.”

To read a decimal, say the name of the last place to the right.

II.Compare and Order Whole Numbers

You can compare whole numbersby comparing the digits in

each place-value position. Write one number under another

so the digits are aligned by their place values. Start at the left

and check each place until the digits are different.

You can order numbersfrom least to greatest or from

greatest to least by aligning and comparing them in the

same way.

Order from greatest to least:

1,657,945; 1,657,948; 658,299; 1,659,816.

HundredsTensOnesHundredsTensOnesHundredsTensOnes

41

HundredsTensOnes

008

HundredsTensOnes

,.

TenthsHundredthsThousandthsTenThousandthsHundredThousandthsMillionths

9

Trillions Billions Millions Thousands Ones

Practice Exercises

Skills Update 407

8,532,314

8,539,417

Remember:

means “is less than.”

means “is greater than.”

Think

8  8

5  5

3  3

9  2

So 8,539,417

is greater than

8,532,314.

1,657,945

1,657,948

658,299

1,659,816

1,657,945

1,657,948

658,299

1,659,816

1,657, 945

1,657, 948

658,299

1,659,816

So the order from greatest to least is 1,659,816; 1,657,948; 1,657,945; 658,299.

Groups of three

digits, separated

by a comma, are

called periods.