Come Back to the Five and Dime

Create an addition and subtraction problem which contains the combination of complements of five and ten. Be sure to include at least four single digits.

How would you provide opportunities for oral practice of abacus computation with a student?
Hi @Lynda! You problem is great example of both five and ten complements.
Hi @appleton.thea
Great problem example of both the five and ten complements.
Come Back to the Five and Dime

Create an addition and subtraction problem which contains the combination of complements of five and ten. Be sure to include at least four single digits.

How would you provide opportunities for oral practice of abacus computation with a student?

9 + 14  5  9 + 7

Oral practice of abacus computation may be a warmup reviewing previous lessons or a cooldown after learning a new skill. I may work it into a lesson, as well, focused on developing listening and memory skills. I would build oral practice into review of prior concepts in order to:
a. gather data for goal progression
b. determine if there are concepts that need some reteaching
c. build up listening and memory skills
d. demonstrate to the student that they’re learning a particularly cool skill that will enable them to do quick math, a skill not many people retain
e. allow the student to think about the tasks as more than systematically moving beads; instead, the understand of relationships among the numbers will become more automatic and fluid