a=52-(37+43)

a=52-80

a=-28

b=512-1024+256

b=-512+256

b=-256

c=1128-(27-69)

c=1128-(-42)

c=1128+42

c=1170

d=128-64-(32+16+16)

d=128-64-64

d=0

e=584+(969-383)

e=584+586

e=1170

f=1-(2+27)

f=1-29

f=-28

Các cặp số bằng nhau:a=f; c=e

a = f

c = e

A=F=-28

C=E=1170

a=f

c=e

a=52-(37+43) = - 28

b=512-1024+256 = -256

c=1128-(27-69) = 1170

d=-128-64-(32+16+16) = -256

e=584+(969-383) = 1170

f=1-(2+27) = -28

Từ đó ta suy ra: 

a = f

b = d

c = e

hok tốt!!

Ta có:

A = 52 − 37 + 43       = 52 − 80       = − 28 . B = 512 − 1024 + 256       = − 512 + 256       = − 256 . C = 1128 − 27 − 69      = 1128 − − 42      = 1128 + 42      = 1170 . D = − 128 − 64 − 32 + 16 + 16       = − 128 − 64 − 64       = − 192 − 64       = − 256 . E = 584 + 969 − 383       = 584 + 586       = 1170 . F = 1 − 2 + 27       = 1 − 29       = − 28 . ⇒ A = F ; B = D ; C = E .

256 x 6=512 x 3

512 x 3=256 x 6

999 x 2>1000

512 x 5>1024

1024<512 x 5

1024=512 x 2

512=256 x 2

256=128 x 2

128=64 x 2

64=32 x 2

32=16 x 2

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