These place value task cards are “puzzles” because they force students to decompose numbers in ways other than the traditional hundreds, tens, and ones. Understanding that numbers can be decomposed by place value lays the foundation for making sense of the regrouping necessary for using the standard algorithm for subtraction. When you regroup to solve 85 – 17, you are really decomposing 85 into 7 tens and 15 ones.
They are great for math workstations, but be sure to include base-ten blocks to support student understanding.
✔ 16 task cards with 2- and 3-digit numbers
✔ A recording sheet and answer key
✔ An interactive Google Slides file with the same task cards and movable base-10 pieces.
WHAT TEACHERS ARE SAYING...
⭐⭐⭐⭐⭐ "This is my 2nd year using this resource and the students love it! I've used it in groups where they each have to fill in their assigned place value and check each other. I've paired students and they race to build it first. I've used it whole class to show different ways to create a model. I've also used it as a quick check assessment." Anastasia B.
⭐⭐⭐⭐⭐ "These activities are perfect for 3rd-graders. Using virtual manipulatives helped student understanding. I really appreciate the decomposition of numbers beyond "normal" place value." Kathryn L.
⭐⭐⭐⭐⭐ "Engaging practice for place value skills. Love that it is also digital for use with virtual learning if needed. Thank you!" Lauri H.
TEKS MA.1.2.B Use concrete and pictorial models to compose and decompose numbers up to 120 in more than one way as so many hundreds, so many tens, and so many ones.
TEKS MA.2.2.A Use concrete and pictorial models to compose and decompose numbers up to 1,200 in more than one way as a sum of so many thousands, hundreds, tens, and ones.
CCSS 1.NBT.B.2 Understand that the two digits of a two-digit number represent amounts of tens and ones.
CCSS 2.NBT.A.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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