youcubed: Flexible Number Trains (1-2)
youcubed (Stanford University)

In this activity we focus on numbers that can be created by repeated addition, summing the same number again and again to achieve the result.

youcubed: Flexible Number Trains (K)
youcubed (Stanford University)

In this activity we focus on numbers that can be created by repeated addition, summing the same number again and again to achieve the result.