Random '100' square
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4.5 (2 Reviews)
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Random '100' square

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    • preschool math
    • Preview of using_a_100_square_for_addition.xls - page 1
      Subject Math — Number and Operations in Base 10
      Grade Level Grades K-5
      Resource Type Activity
      Standards Alignment
      Common Core State Standards
      License

      About This Lesson

      Random ‘100’ square. Based on the principles of addition and subtraction using a 100 square. This small grid is a snapshot of a full 100 square grid. Click anywhere on the grid to reveal/hide numbers. Aligned with Common Core Standards: 1.NBT.4, 1.NBT.5, 1.NBT.6, Number and Operations in Base Ten: Use place value understanding and properties of operations to add and subtract.

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      beta
      EdBrAIn uses AI to customize lesson resources for your students’ needs.

      using_a_100_square_for_addition.xls

      Activity
      February 13, 2020
      53 KB

      Standards

      Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
      Read More About CCSS.Math.Content.1.NBT.C.4
      Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
      Read More About CCSS.Math.Content.1.NBT.C.5
      Subtract multiples of 10 in the range 10–90 from multiples of 10 in the range 10–90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
      Read More About CCSS.Math.Content.1.NBT.C.6

      Reviews

      4.5
      2 Reviews
      SML Member
      SML Member August 17, 2009
      Wow - this is fantastic

      I will be using this in the first week of term, this is so simple and so useful. I had never even thought of this as an activity, and with jumps of 10 or 100 etc is is fantastic practice for place value.

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