Curated OER
Four Digit Subtraction with Negative Results Version 1
In this negative number subtraction instructional activity, students solve 80 problems that require them to subtract using 1, 2, 3, and 4-digit numbers with negative results.
Curated OER
Cinco de Mayo Subtraction Practice: Multi-Digit Subtraction
In this subtraction practice instructional activity, students solve 10 problems that require them to subtract 2-digit number from 2-digit numbers.