yóuqí shì èrshí, qīshí, shísì, sìshí zhèxiē róngyì hùn de shùzì, kàn yī yǎn bǐ cāi gèng wěn

尤其是二十、七十、十四、四十这些容易混的数字，看一眼比猜更稳。

Especially numbers like twenty, seventy, fourteen, and forty that are easy to confuse, it's more reliable to take a look than to guess.