
Place Value and Number Sense
3.N.1
Skip count by 25's, 50's, 100's to 1,000
 Count by 100's at Free Math Test
3.N.2
Read and write whole numbers to 1,000
 Cookie Dough  type the word that corresponds to the numeral
 Do the reverse and type in the number that corresponds with the word.
 Find the missing number  find the butterfly that holds the missing number
 Numeracy Games  many games dealing with numeration
 Really Big Numbers  Enter a number then click the Click here button to see how to write it.
 Reading 3 digit numbers  match the numeral with the number words
3.N.3
Compare and order numbers to 1,000
 Comparing Two Numbers  comparing 4 to 6 digit numbers.
 Greater or Smaller  Compare two numbers.
 comparing one digit numbers  comparing two digit numbers  comparing three digit numbers
 Less Than Lake Maze  Pick numbers less than the one chosen before and work your way across the lake.
 More Than Marsh  Pick numbers more than the one chosen before and work your way across the marsh.
 One False Move Start with the lowest number and work your way up . If you don't know where to start, try using the map.
 One False Move Start with the highest number and work your way down . If you don't know where to start, try using the map.
 Practice comparison at FreeMathTest numbers from 0 to 10, numbers from 10 to 50, numbers from 50 to 100.
3.N.4
Understand the place value structure of the base ten number system:
10 ones = 1 ten
10 tens = 1 hundred
10 hundreds = 1 thousand
 Identifying Place Values  when given a numeral, identify the place value of the digits
 My Place  learn that the value of a digit is determined by the placement of that digit
 Place Value  this video lesson explains place value in whole numbers and decimal numbers, and then gives your students the chance to show understanding on a quiz.
 Place Value  Enter your own number or generate a random number, then answer questions about the place values
 Place Value Party  Choose any ages to start, then trade candles until both cakes have the same number.
 Place Value Strategy  [game for one or two players] a spinner is used to select a number, players then decide where to place the number in order to make the greatest possible decimal value
 Place Value in Words and Numbers  type correct numeral to represent the words
 Practice place value at FreeMathTest  numbers 10 to 99, numbers 100 to 999, numbers 1000 to 9999
 Specific Place  find the numeral in a specific place value
3.N.5
Use a variety of strategies to compose and decompose threedigit numbers
1. Expanded Form of Numbers  write the numeral the expanded form represents
2. Trading Game  explore regrouping using place value blocks
3.N.6
Use and explain the commutative property of addition and multiplication
3.N.7
Use 1 as the identity element for multiplication
3.N.8
Use the zero property of multiplication
3.N.9
Understand and use the associative property of addition
3.N.16
Identify odd and even numbers
 Ghost Blasters (Odd)  Click on ghosts that are even numbers. Click as many times as you can, you can get multiple points on each ghost.
 Ghost Blasters (Even)  Click on ghosts that are even numbers. Click as many times as you can, you can get multiple points on each ghost.
 Me Too  [ this link opens on a new page ] classify whole numbers as odd or even
 Twins  [ this link opens on a new page ] identify odd and even numbers
3.N.17
Develop an understanding of the properties of odd/even numbers
as a result of addition or subtraction
3.N.25
Estimate numbers up to 500
3.N.26
Recognize real world situations in which an estimate (rounding) is
more appropriate
 Basket Math provides rounding practice
 Round About  estimate by rounding
 Rounding to nearest ten
 Rounding to nearest hundred
 The Seashell Rounding Activity Page Look at the number on each shell. Click on the nearest ten.
 Let's Go Shopping  estimate by rounding to the nearest dollar as they shop