a) 2,7×10+8,4×100= b) 4,14×5-7,6×0,1=. c) 3,02×25-0745×100=. d) 54,3:10+25×0,04=.

Let's solve each of these equations:

a) \( 2.7 \times 10 + 8.4 \times 100 = 27 + 840 = 867 \)

b) \( 4.14 \times 5 - 7.6 \times 0.1 = 20.7 - 0.76 = 19.94 \)

c) \( 3.02 \times 25 - 745 \times 100 = 75.5 - 74500 = -74324.5 \)

d) \( 54.3 \div 10 + 25 \times 0.04 = 5.43 + 1 = 6.43 \)

Răspuns:

a)867. b)19,94. c)1. d)6,43