=[(-167)+167].83
=0.83=0
(-167).83+167
=167.(-83)+167
=167.(-83+1)
=167.(-82)
=-13694
=[(-167)+167].83
=0.83=0
(-167).83+167
=167.(-83)+167
=167.(-83+1)
=167.(-82)
=-13694
( -167 ) x 83 + 167 x ( - 17 ) - 33
Tính: (-167).(-83) + 167.17 - 33
Tính: (-167).(-83) + 167.17 -33
thuc hien phep tinh ( hop li neu co the ) :
a, (-167) - |-24| + 67
b, (-1988 - 432) - (-32 - 1988)
c, 5. (-7) - (-4)2 - | -1010 |
d, 61 - 93 . 61 + (-61) . 8
+2+7+8-7-2-9-189-75+83-125+237-167-238+432 =???
tinh nhanh
28(29-23) - 29(28-23)
(-167). (67-34)-67.(34-167)
bt1: tính nhanh
a) - 287+ 499+ (- 499)+ 285
b) ( 326- 43) + ( 174- 57)
c) ( 351- 875) - ( 125 - 149)
d) (-8) . 25 .(-2) .4 (-5) .125
e) (-167). 83+ 167. (-17) -33
g) (- 284). 172+ (-284). (-72)
Tính
a) 2.(-25).(-4).50
b) 16.50.(-25).(-250)
c) (-167).(-83)+167.17-33
d) (135-35).47-53.(-48-52)
Tính
a) 2.(-25).(-4).50
b) 16.50.(-25).(250)
c) (-167).(-83) +167.17 -33
d) (135 -35).47 - 53.(-48 -52)