Respuesta :

Answer:

1. 63

2. 13

Step-by-step explanation:

Qn 1. BODMAS

Bracket Of Division Multiplication Addition and Subtraction

7×(6 - 3)2

7×3×3

7×9

=63

Qn 2. 20 - 4×4 + 3×3

20 - 16 + 9

=13