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Amy Auchter

Scratch and Subtract

Grades: Kindergarten, 2nd Grade, 1st Grade
Subjects: Math

Student Instructions

Use the eraser tool eraser to scratch off any box from the six boxes within the green rectangle. You will reveal a hidden number to use as the total in your number sentence. Then, use the eraser tool eraser again to scratch off any box from the nine boxes within the purple rectangle. You will reveal another hidden number for you to use as the known part in your number sentence. Use the numbers you found to write label drawing a subtraction sentence below in the blue rectangle. Remember to find the missing part and write it in your subtraction sentence.

Teacher Notes (not visible to students)

The totals in this activity range from 10 to 20. Thanks Kris Szajner for the scratch off idea!