Question

3. Calculeaza:
a) 2-10³+3•10²-10+1
b) 5-10⁴ +7•10²+2
c)4•10 la a 6a+3•10la a 5a+ 7•10³ +6•10+8
d) 3-10la a 10a + 10³+3​

Answer 1

Răspuns:

A) 2-1.000+3x100-10+1=

2-1.000+300-10+1=

= -707

B) 5-10.000+7x100+2=

5-10.000+700+2=

= -9.293

C) 4.000.000+300.000+7.000+60+8=

= 4.307.068

D) 3-10.000.000.000+1.000+3=

= -9.999.998.994

Answer 2

3. Calculeaza:

a) 2 - 10³ + 3•10² - 10 + 1 =

= 2 - 1000 + 300 - 10 + 1

= - 707

b) 5 - 10⁴ + 7•10² + 2 =

= 5 - 10000 + 700 + 2

= - 9 293

c) 4•10⁶ + 3•10⁵ +  7•10³ + 6•10 + 8 =

= 4000000 + 300000 + 7000 + 60 + 8

= 4 307 068

d) 3 - 10¹⁰ + 10³ + 3​ =

= 3 - 1000000000 + 1000 + 3

= - 9 999 998 994