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    • ▾1st grade
      • ▾Place value
        • •Count and write numbers within 120
        • •Skip count by 3s and 4s
        • •Place value with tens
        • •Compare two-digit numbers
      • ▸Addition and subtraction
        • •River crossing puzzles
        • •Add and subtract within 20
        • •Add within 20, word problems involving three addends
        • •Use one addition problem to solve another
        • •Add by making tens
        • •Subtract by adding
        • •Understand the equals sign
        • •Add and subtract within 20, missing number problems
        • •Add and subtract within 20, word problems
        • •Add within 100, concrete and pictorial
        • •10 more or 10 less
        • •Subtract multiples of ten from multiples of ten
      • ▸Measurement, data, and geometry
        • •Order without tools
        • •Measure given a unit
        • •Bar and picture graphs having three categories of data
        • •Tell and write time, hour and half-hours
        • •Definitions of shapes
        • •Compose 2D and 3D shapes
        • •Halves and quarters
     › 1st grade › Place value

    Compare two-digit numbers

    Compare two-digit numbers. Use the symbols <, >, and =. You can start with base-ten blocks before comparing written numbers.

    Greater than and less than symbols by Khan Academy

    Do these Khan Academy exercises:

    • Compare 2-digit numbers
    • Compare 2-digit numbers 2

    Conclude by leading this investigation. Here's a partial demonstration. Here's a gentle introduction. Here are answers to some of the questions. Of course, you shouldn't show answers to students until they're done exploring.

    When is not equal to introduced by the Common Core?

    Conclude by leading this investigation:

    Puppet Puzzle (counting, logic, proof)
    by MathPickle

    1.NBT.B.3: Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.

    Additional lessons and practice problems