Find missing addend in completing whole hundreds - Exercise 1

This worksheet focuses on finding missing addends to complete whole hundreds, providing students with essential practice in place value and addition. Children will solve equations like 23 + 777 = 800 and 137 + 63 = 200, which helps reinforce their understanding of how numbers fit together in the hundreds. It’s a great resource for independent work, a math center, or a quick review before a test. Encourage students to explain their thought process as they find each missing number, fostering deeper understanding and communication skills in math.