Grade 1: Grade 1 Module 1, Lesson 16: Count to find the unknown part in missing addend equations such as 6+_=9. Answer, How many more to make 6, 7, 8, 9, and 10? WCNY ...
Grade 1 Math: Grade 1 Module 6, Lesson 8: Count and write numbers to 120. Use Hide zero cards to relate numbers 0 to 20 to 100 to 120. WCNY TV Classroom is available to stream on pbs.org and the free ...