Question

Calcule:
a) 104 + 8.103 +3.102 +5.10 + 6 =
b) 6.10-1 + 5.10-2 + 9.10-3 + 6.10-4 =
c) 3.103 + 2.102 +5.10-1 + 2.10-2 =
d) 3.103+4.10+5.10-2 =
e) 6.102+7.10+9.10-1+2.10-4 =

Answer 1

Olá...

a)

104 + 8 × 103 + 3 × 102 + 5 × 10 + 6

104 + 824 + 306 + 50 + 6

1290

b)

6 × 10 - 1 + 5 × 10 - 2 + 9 × 10 - 3 + 6× 10 - 4

60 - 1 + 50 - 2 + 90 - 3 + 60 - 4

260 - 10

250

c)

3 × 103 + 2 ×102 + 5 × 10 - 1 + 2 × 10 - 2

309 + 204 + 50 - 1 + 20 - 2

583 - 1 - 2

583 - 3

580

d)

3 × 103 + 4 × 10 + 5 × 10 - 2

309 + 40 + 50 - 2

399 - 2

397

e)

6 × 102 + 7 × 10 + 9 × 10 - 1 + 2 × 10 - 4

612 + 70 + 90 - 1 + 20 - 4

792 - 1 - 4

792 - 5

787

Espero ter ajudado.