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Common Core Mathematics Practice for Grade 1

Name: ____________________________________

Standard: CCSS.Math.Content.1.NBT.C.4

 
Description: 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.
 

Worksheet 2677 - Add a two-digit and a two-digit multiple of ten number so that the total is within 100.:

 

  1. 77 + 10 =

  6. 65 + 20 =

  2. 26 + 60 =

  7. 16 + 60 =

  3. 46 + 50 =

  8. 58 + 40 =

  4. 45 + 10 =

  9. 32 + 0 =

  5. 70 + 0 =

 10. 21 + 60 =

Printable #: 2677-CCSS.Math.Content.1.NBT.C.4

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