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Tape Diagram 3-Digit Addition within 1000 Task Cards (Set 3)
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These addition task cards contain a mix of joining and part/part/whole questions using the Tape Diagram, or Bar Model, way of modeling. One of the values of this method is that one model can be used for so many different kinds of questions. Students focus time and mental effort on modeling instead of drawing illustrations. Odd numbered cards contain no composing of tens; while all even numbered cards composing (carrying).
The 32 cards in each set increase in difficulty:
Cards 1-8 – A unit prompt is given
Cards 9-16 – No unit prompt
Cards 17-24 – No numbers are in the tape diagrams
Cards 25-32 – Numbers are in word form
Where possible, numbers are not used twice. For example, all the ones place digits represent as many possible variations as students would see in real life. Every sum in the 3-digit addition is from a different ten in the range of 300-1000 (example – only one answer in 560s, 570s, 580s etc.)
No name is used twice in the entire addition and subtraction bundle.
Each set includes:
• 32 Task cards - color and printer friendly (the paper pattern is slightly different for each set, so if they get mixed during centers they can easily be sorted)
• Response sheet
• Additional tape diagram response sheets
• Class book illustration pages
• Answer Key
• Model question for teacher demonstration