Missing Addend Up to the Sum of 10

by Kinderjen

Price: 250 points or $2.5 USD

Subjects: math,mathElementary,operationsAndAlgebraicThinking,additionAndSubtraction

Grades: 1

Description: In this spring flower-themed Boom Card activity, students will practice determining the unknown number in an addition equation that relates three whole numbers—aligned with CCSS.Math.Content.1.OA.D.8. Each card presents an equation with a missing addend, which is shown using colorful flowers. Students will circle the number of flowers that match the known addend, then count the remaining flowers to find the missing addend. This engaging, hands-on visual approach helps solidify their understanding of part-part-whole relationships in math. 🔍 Skills Covered: Determine the unknown number in addition and subtraction equations Develop algebraic thinking with visual support Practice fact families and part-whole models using concrete representations 🎯 Standards Alignment: CCSS.Math.Content.1.OA.D.8 – Determine the unknown whole number in an addition or subtraction equation relating three whole numbers TEKS MA.1.3.B-Number and operations. The student applies mathematical process standards to develop and use strategies for whole number addition and subtraction computations in order to solve problems. The student is expected to: use objects and pictorial models to solve word problems involving joining, separating, and comparing sets within 20 and unknowns as any one of the terms in the problem such as 2 + 4 = [ ]; 3 + [ ] = 7; and 5 = [ ] − 3;