Grade 2 Math Number A7: Place Value paint swatch cards--what a clever and colorful tool to make (in grade 2, don't have to go beyond 100, but they could try) - to match other representations in a center
Math center idea for tens and ones. use foam dice so they don't make any noise. Student rolls 2 dice. The 1st number is for the tens place and the 2nd one is for the ones place. If they roll a 6 and 4 they write down 64 and then they draw the picture. You can add more dice for larger numbers.
3rd Grade - Math CCSS.MATH.CONTENT.3.NBT.A.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.