Mystery Math Mistake: 99+97 January 1, 2022 Mystery Math Mistake: 99+97 Join Mrs. Ignagni for a Mystery Math Mistake with D.C. Can you use your magnifying glass and find his mistake? Related Lessons Multiply with “Groups of”Lesson 213Multiply with “Groups of”Math3rd GradeJoin Ms. Askew for a subtraction number talk with Springling! Get your multiplication brain ready as you learn how to say "group of" instead of "times".Dividing with Fair SharesLesson 214Dividing with Fair SharesMath3rd GradeJoin Ms. Askew for a subtraction number talk with Springling! Get your math brain ready as we learn to divide one group into smaller groups.Relating Division to MultiplicationLesson 215Relating Division to MultiplicationMath3rd GradeJoin Ms. Askew for a subtraction number talk with Springling! Get ready to have some fun with relating division to multiplication. Submit site search Find a Lesson Subjects English Language Arts Math Science Career Exploration Virtual Field Trips Social Emotional Learning Health & Fitness English Learners Grades Pre-K Kindergarten 1st Grade 2nd Grade 3rd Grade 4th – 5th Grade 6th – 8th Grade 9th – 12th Grade Shows Schedule For Teachers Classroom Resources LABS Educators Lessons by Teaching Standard Live TV Close Modal Close Modal