Question

Efetue a adição: ( 9,77. 10^3 + 0,33. 10^3)

A) 1× 10^5
B) 10^4
C) 10 × 10^4
D) 10 × 10^-3​

Answer 1

$\mathsf{9,77\cdot10^3+0,33\cdot10^3=10,1\cdot10^3}\\\mathsf{=1,01\cdot10^4}$