Question

Calcule as expressões: a) 2².10¹:2¹-3² b)8²:2^5.1^10+5² c) (2+3)² - (2³-2¹) d)(6.5)¹ : (5²-10¹)

Answer 1

a) 4.10:2-9
40:2-9
20-9
11
b) (não entendi as potenciações)
c) 25-6= 19
d)30:25-10
30:15
2