4:01Addition and subtraction
Addition and Subtraction — Level 4
Complete 2 digit subtraction and addition algorithms, decimals and problems. Use calculator to check answers. Discuss other ways to check answers..
Topics covered
- Number and Algebra › Number and place value › Written addition strategies
- Number and Algebra › Number and place value › Written subtraction strategies
- Number and Algebra › Number and place value › Addition to 3 digits
- Number and Algebra › Number and place value › Subtraction up to 3 digits
