Valentine’s Day Math Worksheets | Addition & Subtraction Within 20 | Grade 1 Make Valentine’s Day math fun and engaging with these Grade 1 addition and subtraction worksheets! This no-prep math resource helps young learners practice adding and subtracting within 20 using cute Valentine-themed word problems. Perfect for: Valentine’s Day activities Math centers Morning work Homework Early finishers Students will enjoy solving problems with hearts, candies, and Valentine cards, while teach