Question

efetua as somas e subtraçoes com as anotações abaixo​

Answer 1

Resposta:

1. A) 4 •10⁴ + 3 • 10⁵ =

4 • 10000 + 3 • 100000 =

40000 + 300000 =

340000

B) 1,5 • 10⁸ + 3 • 10⁵ =

1,5 • 100000000 + 3 • 100000 =

150000000 + 300000 =

150300000

C) 4 • 10⁴ - 2 • 10² =

4 • 10000 - 2 • 100 =

40000 - 200 =

39800

D) 6 • 10⁸ - 3 • 10⁵ =

6 • 100000000 - 3 • 100000 =

600000000 - 300000 =

599700000

2. A) ( 4 •10⁴ ) • (3 • 10⁵) =

( 4 • 10000 ) • ( 3 • 100000) =

40000 • 300000 =

12000000000

B) (1,5 • 10⁸ ) • (3 • 10⁵ )=

(1,5 • 100000000) • ( 3 • 100000) =

150000000 • 300000 =

450000000

C) (4 • 10⁴ ) : (2 • 10²) =

( 4 • 10000 ) : ( 2 • 100) =

40000 : 200 =

200

D) (6 • 10⁸) : (3 • 10⁵) =

( 6 • 100000000) : ( 3 • 100000) =

600000000 : 300000 =

2000

Answer 2

Resposta:

1 - a) 4 . 100000 + 3 . 1000000 = 3400000

b) 1,5 . 1000000000 + 3 . 1000000 = 1503000000

c) 4 . 100000 - 2 . 1000 = 398000

d) 6 . 1000000000 - 3 . 1000000 = 5997000000

2- a) (4 . 100000).(3 . 100000) = 1200000000000

b) (1,5 . 1000000000).(3 . 1000000)= 4500000000000000

c) (4 . 100000):(2 . 1000) = 200

d) (6 . 1000000000):(2 . 1000000) = 3000