a, (-152)-2000: (-5)
= (-152) - (-400)
= 248.
b, (-12 ) . 5 +124 : (-2)
= (-60) + (-62) = -122
c, 1+ 32 + (-2)3
= 10 + (-8) = 2
d, 22-12-1944: (23.35 ) +61
= 10 - 1944 : 1994 + 61
= 10 - 1 + 61
= 9 + 61 =70
Hok tốt !
(-152)-2000: (-5)
= -152-(-400)
=248
(-12 ) . 5 +124 : (-2)
=-60+(-62)
=-2
1+ 32 + (-2)3
= 1+9+(-8)
=10+(-8)
=2
22-12-1944: (23.35 ) +61
=22-12-1944:(8.243)+61
=22-12-1944:1944+61
=22-12-1+61
=10-1+61
=9+61
=70