Price: 450 points or $4.5 USD
Subjects: math
Grades: 1,2
Description: Help your first graders review addition & subtraction fact families up to 20. Your students will enjoy the movable answers and typing in answers to complete the fact family house, Includes: 13 Boom Cards/52 problems 1.OA.3 Apply properties of operations as strategies to add and subtract 1.OA.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. 1.OA.8 Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. 2.OA.B2 Fluently add and subtract within 20 using mental strategies. ©Teacher Features