Addition & subtraction strategies to solve two-digit equations using an open number line. In this lesson, students go over using addition and subtraction strategies to solve two-digit equations using ...

Represent teen numbers with addition and subtraction equations involving one 10. Represent 10 using a number bond and 10-frame with a missing addend. Use Notice and Wonder with a 10-frame, connecting ...

This is a preview. Log in through your library . Abstract A learning/teaching approach used base-ten blocks to embody the English named-value system of number words and digit cards to embody the ...