Type! :) Note: the grading is a little WRONG. Sorry!
For Pre-K to 8th graders! add: Pre-K: 1-10 K: 10-30 1st grade: 30-80 2nd grade: 80-200 3rd grade: 200-500 4th grade+: BEYOND 500! Multiply: Pre-K: unsuitable K: unsuitable 1st grade: unsuitable 2nd grade: unsuitable 3rd grade: 3-5 4th grade: 5-40 5th grade: 40-100 6th grade: 100-500 7th grade+: BEYOND 500! subtract: Pre-K: 1-10 K: 10-30 1st grade: 30-80 2nd grade: 80-200 3rd grade: 200-500 4th grade+: BEYOND 500! Divide: Pre-K: unsuitable K: unsuitable 1st grade: unsuitable 2nd grade: unsuitable 3rd grade: 3-20 4th grade: 20-80 5th grade: 80-400 6th grade: 400-500 7th grade+: BEYOND 500!
