Curated OER
Primary Understanding and Use of Place Value
Explore place value and regrouping with your class. They develop awareness of several ancient number systems and how they differ from the base ten system commonly used today. They play "Chip Trading" with partners to practice addition...
Curated OER
Tens Barrier Subtraction
For this subtraction worksheet, students solve 36 fill in the blank problems in horizontal format, where they subtract a 1 digit number from a 2 digit number. Regrouping is required.
Curated OER
Subtract Mixed Numbers With Like Denominators (J)
Start by subtracting the whole numbers and then the fractions! Learners solve subtraction problems with like denominators (no regrouping required). Good, basic practice when it comes to fractions!
Curated OER
A Secret Code
In this addition and subtraction worksheet, students solve for problems to complete the riddle about George Washington. Students solve 20 two digit problems of addition and subtraction with some regrouping necessary.
Khan Academy
Khan Academy: Add/ Subtract Mixed Numbers W Unlike Denominators (No Regrouping)
Practice adding and subtracting mixed numbers with different denominators. No regrouping required.
Khan Academy
Khan Academy: Add and Subtract Mixed Numbers With Unlike Denominators 1
Practice adding and subtracting mixed numbers with different denominators. No regrouping required. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.