Complete the subtraction equation with a total of 10. At first, a row of cubes is provided and some cubes start disappearing. Enter the missing value in the equation. Then, just the equation is shown with a number missing. Enter the correct value
A. Use base-10 blocks to model a subtraction scenario with objects to 9 and record as an equation
B. Model +/- scenarios within 9 on a number line and solve a related equation
C. Model +/- scenarios within 10 on a number line and solve a related equation
D. Complete +/- equations within the fact family of 9 based on a model of base-10 blocks
E. Complete +/- equations within the fact family of 10, including turnaround facts
G. Complete +/- equations within the fact family of 10 based on a model of base-10 blocks
H. Record +/- scenarios with base-10 blocks as equations within 10