Question

Complete :

A)5.10²×4.10³=

B)7.10²×4.10³=

C)5.10³×4.10³=

D)8.10³÷2.10=

E)4.10²+5.10³=

Answer 1

Explicação:

A)5.10²×4.10³= 5×100×4.1000=500×4000= 2 000 000

B)7.10²×4.10³= 7×100×4×1000=700×4000= 2 800 000

C)5.10³×4.10³= 5×1000×4×1000=5000×4000= 20 000 000

D)8.10³÷2.10= 8×1000÷20= 8000÷20= 400

E)4.10²+5.10³== 4×100+5×1000= 400 + 5000= 4500