Great for practice with +1, -1, +10, -10 using a hundred chart and a neat little "window" tool that students can use.
Option 1: Use the worksheets provided with the numbers already filled in for quick practice or assessment.
Option 2: Use the blank worksheet to fill in your own numbers.
Option 3: Use the blank worksheet and have students roll number dice, draw cards, spin a spinner, etc. to pick the middle number for each box.