Curated OER
Add Tens and Ones
Six story problems challenge young mathematicians to add single- and double-digit numbers. Manipulatives would come in very handy for primary graders tackling this learning exercise. Some of the sums have addends as large as 25 and 33....
Curated OER
Simple Integer Addition
In this addition learning exercise, students solve 40, two digit addition problems displayed in a horizontal format. Regrouping is required for some of the problems.
Curated OER
Two Digit Addition
In this addition worksheet, students solve 84 two digit addition problems. Worksheets are set up 12 problems to a page, 7 pages total.