a)1125-374-1125-65+374
=(1125-1125)+(-374+374)-65
=0+0-65
=-65
a/ 1125-(374+1125)+(-65+374)
=1125-374+1125+(-65)+374
=[1125+1125]+[-374+374]+(-65)
=2250+0+(-65)
=2250+(-65)
=2185
b/ -23.63+23.21-58.23
=-23.(63+23-58)
=-23.28
=-644
a) 1125-(374+1125)+(-65+374)
=1125-374-1125+(-65)+374
=1125+(-374)+(-1125)+(-65)+374
=(-1125+1125)+(-374+374)+(-65)
=0+0+(-65)
b) -23.63+53
1125 - ( 374 + 1125 ) + ( - 65 + 374 )
= 1125 - 374 - 1125 - 65 + 374
= 1125 - 1125 + 374 - 374 - 65
= 0 +0 - 65
= - 65
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a/ 1125-(374+1125)+(-65+374)
=1125-374+1125+(-65)+374
=[1125+1125]+[-374+374]+(-65)
=2250+0+(-65)
=2250+(-65)
=2185
b/ -23.63+23.21-58.23
=-23.(63+23-58)
=-23.28
=-644
A.1125-374-1125-65+734
=(1125-1125)+(-374+374)-65
=0+0-65
=-65
a)1125-(374+1125)+(-65+374)
=1125-374-1125-65+374
=(1125-1125)+(374-374)-65
=0+0-65
=-65
b)-23.63+23.21-58.23
=23.-63+23.21-58.23
=23.(-63+21-58)
=23.-100
=-2300
B-23.63+23.21-58.23
=-23.(63+23-58)
=-23.28
=-644
học tốt
a)1125 - (374 + 1125 ) + ( -65 + 374)
= 1125 – 374 – 1125 + (-65) + 374
= ( 1125 – 1125 ) + ( -374 + 374) + (-65)
= 0 + 0 + (-65)
= -65
b) -23. 63 + 23.21 - 58. 23
= 23. (-63) + 23.21 – 58.23
= 23. [(-63) + 21 – 58]
= 23. (-100)
= -2300
a)1125 - (374 + 1125 ) + ( -65 + 374)
= 1125 – 374 – 1125 + (-65) + 374
= ( 1125 – 1125 ) + ( -374 + 374) + (-65)
= 0 + 0 + (-65)
= -65
b) -23. 63 + 23.21 - 58. 23
= 23. (-63) + 23.21 – 58.23
= 23. [(-63) + 21 – 58]
= 23. (-100)
= -2300
a)1125-(374+1125)+(-65+374)
= 1125 - 374 - 1125 - 65 + 374
= (1125-1125) + (-374+-374) - 65
= 0 + 0 - 65
= -65
b)-23.63+23.21-58.23
= 23 . -63 + 23 . 21 - 58 . 23
= 23 . ( -63 + 21 - 58 )
= 23 . -100
= -2300
