2.NBT.1.+Understand+that+the+three+digits+of+a+three-digit+number+represent+amounts+of+hundreds,+tens,+and+ones;+e.g.,+706+equals+7+hundreds,+0+tens,+and+6+ones

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Number and Operations in Base Ten 2.NBT 1. Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases: a. 100 can be thought of as a bundle of ten tens — called a “hundred.” b. The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).
 * Understand place value. **

// **Bridges in Mathematics** (Place Value) // Close to 100

TERC, **//Putting Together and Taking Apart//** "Working with a 100" (Investigation 2:1-4) "Capture 5" (Investigation 5: 2-3)

John Van deWalle and LouAnn Lovin, **//Teaching Student Centered Mathematics K - 3//**, pages 122 – 156 //**Bridges in Mathematics**: Numbers to 1000//; //Place Value; Race to 10// Marilyn Burns, //**Math by All Means**, Place Value Grade 2, 1-4// April Albers, **//Hundreds Riddles//**//,// Oregon City Schools

Understanding Place Value Place Value Practice Numbers to 1000

//**Think Math**// Lessons 3.2 - 3.6; 3.8; 4.1 - 4.3; 4.5