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Each task card has 3 dinosaurs. Two of the dinosaurs have a number and one is a mystery. The total for all three dinosaurs is in the corner.
You may choose to tell your students the numbers are the weight for the dinosaurs or cost (if they’re toy dinosaurs). Eiher way, the math is the same. Students will need to solve the number for the mystery (?) dinosaur by using the total and the other 2 numbers.
There is a version with only 2-digit numbers and another version with 3 an 4 digit numbers (both versions are in this document).
There is also a recording sheet and answer key.
Wonderful additive thinking!