Unit 2: Introduction to Place Value through addition and subtraction within 20
I can solve word problems by adding three whole numbers.
I can use objects, drawings, and/or equations with a symbol to represent a word problem.
I can use the commutative property as a strategy to add.
I can use the associative property as a strategy to add.
I can add within 20 using a variety of strategies.
I can solve result unknown problems.
I can solve total unknown problems.
I can count backward from 20.
I can solve subtraction problems involving take from situations.
I can solve subtraction problems involving take apart situations.
I can solve subtraction problems by using addition.
I can subtract within 20 using a variety of strategies.
I can solve addition and subtraction word problems with the unknown in all positions.
I can add and subtract within 20 using a variety of strategies.
I can make a ten from ten ones.
I can compose a two-digit number from a/some tens and ones.
I can add and subtract within 20 using a variety of strategies.
Place Value Songs
Practice Sites
Tens and Ones: An Introduction to Place Value
Shark Numbers (place value blocks)
Hundreds Place Value Hockey (level 1)
Greater Than, Less Than