Me: Ayub, what’s one plus one?
Ayub: One plus one is one one is eleven.
Me: Hmm… good try but not quite. Here’s one (I lift one finger)… then I plus one (I lift another finger)… So what do I have?
Ayub: Fingers!
Me: Yes… I do have fingers… but how many?
Ayub: (singing happily and counting his fingers) One little two little three little fingers! Four little five little six… (all the way to ten) Ten fingers Mama! Ayub have ten fingers!
Me: Yup. That’s true.
Sulaiman: Sulaiman have one hundred fingers ten minutes!
Me: Sulaiman, what’s one plus one?
Sulaiman: Sulaiman is three years old.