Question

1. © assessment an old building has 48 big windows. the building has 12 small windows. there are 9 broken windows. how many windows are not broken? ① 51 ② 48 ③ 41 ④ 37

Explanation:

Step1: Calcular total de ventanas

Sumar ventanas grandes y pequeñas: $48 + 12 = 60$

Step2: Restar ventanas rotas

Restar ventanas rotas del total: $60 - 9 = 51$

Answer:

A. 51