Giải
Gọi a là số bị trừ; b là số trừ và c là hiệu.
Ta có:
a - b = c hay a = b + c
Trong phép trừ đã cho ta có:
a + b + c = 2014
Hay:
a + a = 2014
Do đó :
a = b + c = 2014 : 2 = 1007
Vậy số bị trừ là 1007
Hiệu của hai số là:
(1007 -125) : 2 = 441
Số trừ là:
441 +125 = 566
Đáp số:
SBT: 1007
ST: 566
H: 441
gọi số ba số đó là abc
a+b+c=2014
b+c=a
a+a=2014
a=2014:2=1007
tổng số trừ và hiệu là:2014-1007=1007
hiệu là :(1007-125):2=441
số trừ là:441+125=566
số bị trừ:1007
số trừ :556
hiệu:441
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