There are 142 timed tests included in this download. Each test has exactly 100 mixed problems. There are two addition, subtraction, multiplication and division tests with answer keys for numbers 0/1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12. There are four mixed tests versions for addition, subtraction, multiplication and division. Expansion timed test are also included. These are:
1) Six mixed tests that combine addition, subtraction, and multiplication
2) Six mixed tests that combine addition, s