Fish Subtraction within 20

This “Subtraction Within 20” resource is a comprehensive and differentiated maths tool designed to help Year 1 pupils build confidence and fluency with subtraction. Fully aligned with the UK National Curriculum objective “Add and subtract one-digit and two-digit numbers to 20, including zero,” it supports a range of abilities through structured, visual, and increasingly challenging activities. The resource includes three levels: Working Towards Age-Expected: Uses pictorial strategies, such as crossing out images, to introduce subtraction concepts step-by-step. Working At Age-Expected: Encourages independent practice with visual cues to consolidate subtraction facts. Greater Depth: Provides missing number problems, prompting children to use inverse operations and known facts to complete equations. Perfect for whole-class lessons, interventions, or home learning, this versatile pack helps pupils strengthen number sense and problem-solving skills. Answer sheets are included for easy assessment or self-checking. An ideal resource for teachers, tutors, and parents looking to support subtraction fluency in an engaging and accessible format.