1st Grade 1.NBT.C.6 Math Number Operations in Base Ten Printable Worksheet PDF. Common Core State Standard 1.NBT.C.6 Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences).
1st Grade 1.NBT.C.6 Math Number Operations in Base Ten Printable Worksheet PDF. Common Core State Standard 1.NBT.C.6 Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences).