This is a set of 24 QR code task cards aligned to the first grade common core standard:
CCSS.Math.Content.1.OA.D.8 Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.
Students will need to determine which addend is missing to complete the equation. Students will be adding up to 20.
QR codes are included on each card so that students can check their work.
*2 versions of the task cards are included: one with QR codes, and one without
Ideas for using task cards in your classroom:
-write the room
-early finisher choice
-cooperative learning activity