This is the BEST cut 'n paste activity you're ever going to use (which will be for many, many years, I'm going to bet....)
1) EZ Cut 'n Paste Format - the answers are arranged along the two sides and can be trimmed using a minimum of cuts - most students can do the cutting in under 8 minutes.
2) Multiple Formats: You know how we always write equations as A + B = C? What do your students do when they see C = A + B? They panic! Well, no more, because there are many examples where the sum is on the left side. WOW!
3) Missing Minuends: Okay, this is truly cool - kids get to practice seeing that you can use subtraction as well as addition - so instead of just 7+7 = ? and ? = 7 + 7, I also put in ? - 7 = 7, and 7 = ? -7.
Great stuff, cheap and you'll use it for years and years and years.....