![Missing Number](/sites/default/files/styles/assets/public/lwd7/lesson/aspic.jpg.webp?itok=U4-ftOoC)
Missing Number
Lesson
The students will learn strategies to determine the missing number in addition and subtraction equations using numbers within 20.
Grade(s): 1
Subject(s): Math
Year: 2015
Lesson
The students will learn strategies to determine the missing number in addition and subtraction equations using numbers within 20.