Identify a missing addend in equations that sum to 9 or 10. Students will also use turnaround facts to identify mssing addends
A. Identify a missing addend in equations with a sum and their turnaround facts
B. Record a model of base-10 blocks as an addition equation
C. Identify the missing addend in equations paired as turnaround facts with sums of 4, 5, 6 and 7
D. Solve for a missing addend in an equation
E. Identify the missing addend in equations paired as turnaround facts with sums of 6, 7, 8 and 9
F. Choose the correct sum for an addition expression