I wrote these 100 problems for my 2nd graders. I have listed them for sale in groups of 10, but these are all of them in one place for a discount. Each problem has 3 different number sets so you can differentiate instruction, as well as an extension problem for an additional challenge. The skills they encompass are: addition with and without regrouping, addition with 3 addends, "between," compare problems, division, elapsed time, extra information problems, fractions, greater than/less than, logic, missing number problems, money, multiplication, multi-step problems, number patterns, ordering numbers, part/part/whole, place value, problem solving, rounding, solid shapes, subtraction with and without regrouping. These problems are ready to print or you can change the names to your own students' names for extra engagement.