In 11 − 7 and 4 + 7, the 11 looks bigger than the 4. Yet 4 + 7 wins. This 3rd grade comparing sums and differences worksheet teaches children to work out both sides before they choose a sign. A worked example opens the page: 8 + 17 makes 25, 29 − 4 also makes 25, so the sign is =. Then come fourteen statements, from 3 + 5 and 10 up to 72 + 48 and 120. For each one, your child solves the left side and the right side, then writes <, > or = in the box. A second page gives the answer key.