MATH

• WELCOME TO MATH!

LESSON 1-1

For Math Class you will need your textbook, workbook, and a notebook.

Today we will work with place value in 3-digit numbers.
We will also read and write 3-digit numbers in standard, expanded, and word name form.

Please open your textbook to page 30.

You will recall that the place value model for one is a cube,
the place value model for ten is a rod (made up of ten joined cubes),
and the place value model for 100 is a flat (made up of ten joined 10 rods).

The following examples are just practice; you can simply complete the sentences verbally rather than writing them out.

69 = _____ tens _____ ones.
69 in word form: ________________________.

72 = _____ tens _____ ones.
72 in word form: ________________________.

39 = _____ tens _____ ones.
39 in word form: ________________________.

Please take a look at the base ten blocks pictured at the top left of the display on page 30.
How many of each kind of model are there?

The  Expanded form of a number shows the  value of each digit in the number.
Please see the example in your textbook.

In the  Standard form of a number, the  digits 0 through 9 are used.
Please note that the order of the digits is important because the  value

of a digit in a number depends on its  place in the number (i.e., is
the digit located in the ones column, the tens column,
or the hundreds column?)

Finally, please pay attention to the word names given to numbers.
• Notice that the word and is never used when reading a 3-digit number.
• Also, take note that there is a hyphen between the words giving the values of the tens and ones places. (You can see an example of this at the bottom of page 30, #s 5 and 7.)

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Please complete the odd problems, numbers 1 - 45 in your notebook.
Your parents are welcome to review your work, or you may submit a copy for me to check your answers. This portion of the assignment will not be graded.

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FOR SUBMISSION: Please complete page 1 in your Math workbook.