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-23.63 + 23.21 - 58.23
= 23.-63 + 23.21 + 23.-58
= 23.(-63+21+-58)
=23.-100
=-2300
-23.63+23.21-58.23
= 23. (-63) + 23.21 - 58.23
= 23.( -63 + 21-58)
= 23. (-100)
= -2300
-23.63+23.21-58.23=23.-63+23.21-58.23=23(-63+21-58)=23.-100=-2300
-23.63+23.21-58.23
=23.(-63)+23.21-58.23
=23.(-63+21-58)
=23.(-100)
=(-2300)
-23.63 + 23.21 - 58.23
= 23.(-63 + 21 - 58)
= 23.(-100)
= -2300
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
( - 12 ) . ( - 13 ) + 13 . ( - 29 )
= \(12.13+13.\left(-29\right)\)
=\(13.\left[12+\left(-29\right)\right]\)
=\(13.\left(-17\right)\)
=\(-221\)
a) (-12).(-13) + 13.(-29)
= 12.13 + 13.(-29)
= 13.(12 - 29)
= 13 . (-17)
=-221
b) -23.63 + 23.21 - 58.23
= -(23.63 - 23.21 + 58.23)
= -23.(63 - 21 + 58)
= -23.100
=-2300
\(-23.63+23.21-58.23\\ =23.\left(-63\right)+23.21-58.23\\ =23\left(-63+21-58\right)\\ =23.\left(-100\right)=-2300\)
-23 . 63 + 23 . 21 - 58 . 23
= 23 . (-63 + 21 - 58) = 23 . (-100) = -2300
a, [ 13-17 ].[-10]+[-7]0
=-4.[-10]+1
=40+1
=41
b, 72.[28-49] + 28.[-49-72]
=72.[-21]+28.[-121]
=-1512+[-3388]
=-4900
c, -65.[87-17] - 87.[17-65]
=-65.70-87.[-48]
=4550-[-4276]
=8726
d, -23.63+23.21-58.23
=23.(-63)+23.21-58.23
=23.(-63+23-58)
=23.(-40-58)
=23.(-98)
=-2254
e, 25.134+25.[-34]
=25.[134+(-34)]
=25.100
=2500
a, -23.63+23.21-58.23
= 23.(-63)+23.21-23.58
= 23.[(-63)+21-58]
= 23.(-100)
= -2300
b, 210+[46+(-210)+(-26)]
= 210+46+(-210)+(-26)
= 46-26
= 20
c, 25.134+25.(-134)
= 25.(134+(-134)
= 25.0 = 0
a,15+23+(-25)+(-23)=[ (-23)+23] +[(-25)+15] = 0+(-10)= -10
b,-23.63+23.21-58.23=23.(-63)+23.21-58.23=23.(-63+21-58)=23.(-100)=-2300
a)
15 + 23 + ( -25 ) + ( -23 )
= [ 15 + ( -25 ) ] + [ 23 + ( -23 ) ]
= -10 + 0
= -10.
b)
-23.63 + 23.21 - 58.23
= -23 . ( 63 - 21 + 58 )
= -23 . 100
= -2300.