Looking for a clear and engaging way to teach addition and subtraction within 100? This ready-to-use lesson helps students build confidence with adding and subtracting without regrouping. Students will review place value, learn how to line up numbers correctly, and solve problems step by step using tens and ones. Perfect for 2nd grade math and great for whole group instruction, small groups, or virtual learning! 📚 What’s Included: Slideshow covering: Place value review (tens and ones) Add