1st Grade 1.BNT.C.5 Math Number Operations in Base Ten Printable Worksheet PDF. Common Core State Standard 1.BNT.C.5 Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
1st Grade 1.BNT.C.5 Math Number Operations in Base Ten Printable Worksheet PDF. Common Core State Standard 1.BNT.C.5 Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.