Show a seven-year-old 679 and 679 + 9, then ask which is bigger. Some will reach for a pencil to add; others will just smile, because adding 9 can only make it grow. This 2nd grade comparing expressions worksheet rewards that smile. Ten pairs run down the page, each with an empty box in the middle for one of three comparison symbols: greater than, less than or equal. Many pairs share a number, like 74 + 3 and 74, or 1000 and 1000 + 0, so your child can decide by thinking about what the plus or minus does. However, a few, such as 900 − 300 and 300, need a quick sum in the head first. A firefighter carrying a bucket runs along the side. A second page gives the answer key.