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\(-167.83+167.\left(-17\right)-33\)
\(=-167.83+\left(-167\right).17-33\)
\(=-167.\left(83+17\right)-33\)
\(=-167.100-33\)
\(=-16700-33=-16733\)
− 167 . − 83 + 167.17 − 33 = 167.83 + 167.17 − 33 = 167. 83 + 17 − 33 = 167.100 − 33 = 1667
− 167 . − 83 + 167.17 − 33 = 167.83 + 167.17 − 33 = 167. 83 + 17 − 33 = 167.100 − 33 = 1667
a, (-167) - |-24| + 67
=(-167+67)-|-24|
=-100 - 24
=-124
b, (-1988 - 432) - (-32 - 1988)
= -1988+432-32+1988
= (-1988+1988) + (432-32)
= 0+400
=400
a: \(\left[\left(-59\right)+71\right]-\left[\left(-83\right)-\left(-95\right)\right]\)
\(=\left[71-59\right]-\left[-83+95\right]\)
=12-12
=0
b: \(\left(435-167-89\right)-\left(435-89\right)\)
\(=435-167-89-435+89\)
\(=\left(435-435\right)+\left(89-89\right)-167\)
=0+0-167
=-167
c: \(\left(-624\right)-\left[\left(376+245\right)-45\right]\)
\(=\left(-624\right)-\left[376+245-45\right]\)
\(=\left(-624\right)-376-200\)
=-1000-200
=-1200
28(29-23) - 29(28-23)
= 812-644-812+667
= 23
(-167).(67-34)-67.(34-167)
= -11189+5678-2278+11189
= 3400
28(29-23) - 29(28-23)
= 812-644-812+667
= 23
(-167).(67-34)-67.(34-167)
= -11189+5678-2278+11189
= 3400
a) - 287+ 499+ (- 499)+ 285
= ( - 287 + 285 ) + [ 499 + ( - 499 ) ]
= -2 + 0 = -2
b) ( 326- 43) + ( 174- 57)
= 326 - 43 + 174 - 57
= ( 326 + 174 ) - ( 43 + 57 )
= 500 - 100
= 400
c) ( 351- 875) - ( 125 - 149)
= 351 - 875 - 125 + 149
= ( 351 + 149 ) - ( 875 + 125)
= 500 - 1000
= - 500
a) 2.(-25).(-4).50 = 10000
b) 16.50.(-25).(-250) = 5000000
c)
− 167 . − 83 + 167.17 − 33 = 167.83 + 167.17 − 33 = 167. 83 + 17 − 33 = 167.100 − 33 = 1667
d)
135 − 35 .47 − 53. − 48 − 52 = 100.47 − 53. − 100 = 100.47 + 53.100 = 100. 47 + 53 = 100.100 = 10000
ko biet giai
=[(-167)+167].83
=0.83=0