Help get young learners more comfortable with basic algebra. Our resource provides warm-up and timed drill activities to practice procedural proficiency skills. Finish the patterns with the missing images. Fill-in the missing numbers in a hundreds chart. Find the number that is missing from an addition or subtraction sentence. Choose more than, less than, or equal to. Put numbers in order from biggest to smallest. Find the missing fact from the fact family. Put books into equal groups. The drill sheets provide a leveled approach to learning, starting with prekindergarten and increasing in difficulty to grade 2. Aligned to your State Standards and meeting the concepts addressed by the NCTM standards, reproducible drill sheets, review and answer key are included.