English to Japanese Other Education / Pedagogy autism

I am translating a psychoeducational report on a 3-year-old child who is suspected to have autism. The context is:
"She was unwilling to sort objects by color and shape. She was not able to name common objects. She was not able to repeat number digits."

Here is my question. What kind of action is to "repeat number digits"?

この場合、digit は「桁」でしょうか「指」でしょうか？「指折り数えるのを真似る」みたいなことでしょうか？わかる人がいらっしゃいましたら、教えてください。