1. Lessons
  2. Grade 1
  3. Math
  4. Thinking Deeper about Adding and Subtracting- The Unknown Number

Math Lesson - What’s the Rule - Part 2, Grade 1

  • Activity 1 / What's the Rule Worksheet

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    Colorful robots are here to help your child find the relationships between each set of numbers! This adorably illustrated worksheet uses vivid pictures that each contain a rule. Look carefully at each function machine and determine the pattern or relationship found between each pair of numbers in the input and output columns. Then, complete the sheet by circling the robot that contains the correct answer!

    Download Worksheet Complete online

  • Activity 2 / Missing Numbers Worksheet

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    Solving for missing numbers is a critical pre-algebra skill that even elementary students can learn! All our adorable robots to guide your child along the way while completing this! On either side of each function machine is a robot with a number on his belly, and a missing answer in his hands. Simply look at the other numbers in each graph to find rule and use it to solve for the missing number! Don’t forget to encourage kids to check their answers their work, applying the missing number to ensure it is correct!

    Download Worksheet Complete online

  • Activity 3 / Function Machines: Missing Number

  • Activity 4 / Guess the Number Worksheet

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    Analyzing relationships between numbers and identifying patterns in math is essential for students to gain a solid number sense! This delightful printable worksheet uses adorable robot illustrations to motivate kids as they find the rule or pattern contained within each function machine on the page. While working, kids will look at the function machine and determine the rule, using that number to solve for the missing number in each graph.

    Download Worksheet Complete online

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