Solve for a missing addend in an equation. Students will use an interactive game to help guide them through solving for the missing 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
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
G. Identify the missing addend in equations paired as turnaround facts with sums of 9 and 10