1.3.A
Use concrete and pictorial models to determine the sum of a multiple of 10 and a one-digit number in problems up to 99.

1-on-1 AI tutoring aligned to 1.3.A. Instant help for students, real-time insights for teachers.
Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.
Free for teachers, forever →