Laminate and display this puzzle to encourage students to think deeply about how each group of circles is the same and different. This works as a great hook when introducing the concept of odd and even numbers.

Challenge your 2nd grader with this math worksheet in which he must solve two-digit subtraction problems, find the multiples of 2, and complete a word problem.

Including a lesson on recognizing multiples, this 2nd grade worksheet offers a greater challenge than the usual subtraction worksheet.