Mental Math Strategies (Grade 2)
Lesson Plans and Worksheets for Grade 2
Lesson Plans and Worksheets for all Grades
More Lessons for Grade 2
Common Core For Grade 2
Examples, solutions, videos, and songs to help Grade 2 students learn how to fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
Common Core: 2.OA.2
Suggested Learning Target
- I can use mental strategies (e.g., count on, make a ten) to add or subtract numbers within 20 with ease.
- I can recall from memory all sums of two one-digit numbers.
2.OA.2 - Mental Math Strategies: Make 10
How to use mental strategies to add within 20 using the "make 10" strategy. This is one of the strategies suggested in the Common Core State Standards for Mathematics, 2.OA.2.
How to use mental strategies to add within 20 using known sums to solve unknown sums? 2.OA.2 - Mental Math Strategies: Addition & Subtraction Relationship
How to use mental strategies to add and subtract within 20 using the relationship between addition and subtraction?
Check out our most popular games!
Fraction Concoction Game:
Master fractions in the lab: mix, add, and subtract beakers to create the perfect concoction!
Fact Family Game:
Complete fact families and master the link between addition & subtraction and multiplication & division.
Number Bond Garden:
Clear the board by matching number pairs that sum to ten in this garden-themed mental math puzzle.
Online Addition Subtraction Game:
Practice your addition and subtraction skills to help the penguin find its mummy.
Penguin Solitaire:
Move all cards to the foundations to build four full sequences. There are two versions here: Penguin (Tuxedo) and Penguin (Original).
Sawayama Solitaire:
This is similar to the common Klondike Solitaire except for a few changes to make it more strategic.
Check out more Solitaire games here.
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