I use this Math Madness (mad math minute) in my first grade classroom to give my students a weekly timed math drill. The levels are divided as follows:
Levels 1-5 - Addition, 0-12
Levels 6-10 - Subtraction, 0-12
Levels 11-14 - Mixed Addition and Subtraction, 0-12
Levels 15-19 - Addition, 0-20
Levels 20-24 - Subtraction, 0-20
Levels 25-30 - Mixed Addition and Subtraction, 0-20
My students love Math Madness, and I can always count on the to remind me every Wednesday, if I forget.
Each sheet contains 3 of the same level for easy photocopying.
If you're teaching multiplication, be sure to check out Multiplication Madness in my store.