# Expanded Form and Place Value

This is a one day lesson to teach place value in expanded form using place value tents and number dice to form numbers up to 10,000.Â  Students pretend to be doctors operating on a number to expand it. The dice game allows students to work individually to create a standard number. This is a whole group lesson for demonstrating and practing with standard and expanded form. This could also be used for differentiated instruction for struggling students.

### Standards & Objectives

CCSS.Math.Content.2.OA.B.2
Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.
CCSS.Math.Content.3.NBT.A.1
Use place value understanding to round whole numbers to the nearest 10 or 100.
GLE 0306.2.1
Understand the place value of whole numbers to ten-thousands place including expanded notation for all arithmetic operations.
SPI 0306.2.2
Identify the place value of numbers in the ten-thousands, thousands, hundreds, tens, and ones positions.
TSS.Math.2.OA.B.2
Fluently add and subtract within 30 using mental strategies. By the end of 2nd grade, know from memory all sums of two one-digit numbers and related...
TSS.Math.3.NBT.A.1
Round whole numbers to the nearest 10 or 100 using understanding of place value.

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### Lesson Variations

Blooms taxonomy level:
Understanding
Extension suggestions:

Extensions:

• Use dice to show place value.
• Students pair up and roll three dice.
• Write the number, then roll the red or green die and add tens or hundreds.
• Students can use the Place Value Tents to add the numbers from the dice.
• Red, white, and green dice:
• White—ones place
• Red—tens place
• Green—hundreds place
• Folded Place Value Strips students cut strips and write numbers in the empty spaces to exchange hundreds for tens and tens for ones.
• Have students add a digit (4) to the hundreds place. What number are we adding? (400)
• What is the difference in adding a 4 to the hundreds place or adding a 4 to the number?