-This is a place mat that the students can use to model addition by drawing base ten blocks or by using cut outs of base ten blocks.
1. Laminate or place the mat inside a protective sheet
2. Expo Markers
3. Print base 10 blocks onto colored cardstock and laminate
2.NBT.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.