Mental Addition and Subtraction of 10s or 100s
Aligned To Common Core Standard:
Grade 2 Base Ten- 2.NBT.8
Printable Worksheets And Lessons
- Step-by-step Lesson- I broke
out the numbers line to help us. We move between the addition and
subtraction of 10s.
- Guided Lesson
- The focus is on on the movement between tens place again here.
- Guided Lesson Explanation
- Sorry, I might have gone a bit overboard with explaining here.
I just wanted to make sure a students wouldn't need any outside
- Practice Worksheet
- Ten problems that all use a numbers line to prompt the students.
- Matching Worksheet - Match the missing numbers line spot to the number that is missing.
View Answer Keys- All the answer keys in one file.
Fill in the partially missing parts of the numbers line.
You will start with blank number lines; except for the start and finish.