Students use number bonds to solve addition problems that cross ten. They break the second addend into parts, one of which makes 10 with the first addend. Then, they add the remainder to solve
A. Identify the connection between a number bond and a fact family
B. Complete number bonds
C. Use a number bond to make 10
D. Use number bonds to solve related addition and subtraction equations
F. Solve addition equations that cross a ten, where one addend is 9
G. Solve more addition equations that cross a ten, where one addend is 8
H. Solve more addition equations that cross a ten, where one addend is 7
I. Find the missing subtrahend in subtraction equations
J. Use number bonds to make 10 and solve subtraction equations
K. Solve subtraction equations that cross a ten (Level 1)
L. Solve subtraction equations that cross a ten (Level 2)
M. Build fluency solving subtraction equations that cross a ten
N. Subtract single-digit numbers from a tens number, using base-10 blocks for support
O. Use number bonds and base-10 blocks to subtract a 1-digit number from a 2-digit number
P. Use number bonds to subtract a 1-digit number from a 2-digit number, crossing a ten
Q. Build fluency solving subtraction equations that cross a tens number
R. Build fluency solving subtraction equations with a 1- and 2-digit number