1st GradeMathNumber and Operations in Base Ten
1.NBT.C.4
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.
1 Free Worksheet for 1.NBT.C.4
All worksheets below are aligned to CCSS 1.NBT.C.4 and printable as PDF.
Adding 2-digit and 1-digit numbers in columns (no carrying) - Saturn
Grade1st Grade
TopicAddition facts
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Related 1st Grade Standards (Number and Operations in Base Ten)
1.NBT.1Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.1.NBT.3Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.1.NBT.A.1Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.1.NBT.B.2Understand that the two digits of a two-digit number represent amounts of tens and ones.1.NBT.B.3Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.