Mathematics (2019) Grade(s): 1
MA19.1.6c
Demonstrate fluency with addition and subtraction facts with sums or differences to 10 by decomposing a number leading to a ten.
Demonstrate fluency with addition and subtraction facts with sums or differences to 10 by decomposing a number leading to a ten.
COS Examples
Example: 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9
