What a fun and engaging way for the students to think about all of the facts that make 100. This sheet has mostly number sentences that equal 100, with a few distractors that they will X out. the facts are addition and subtraction, and some are a challenge! Fun, cute, engaging and great practice for the kids to promote number sense.. This would be a great follow-up to a math center, or it can be done alone. Learning basic facts is a crucial building block for other 2nd grade math skills, and especially for multiplication in 3rd grade. The more practice, the better! Also check out my Ways to Make 12, 15, 18, 20, 25, 30, 40 and 50! Thanks!