Thực hiện phép tính (tính nhanh nếu có thể)
5—8
4—(—3)
15—27
(—6)—7
(—9)—(—8)
(-7)-(-7)
12-(-14)
(-24)+6+10+24
15+23+(-25)+(-23)
(-9)+(11+21)+(-1)
(5674-97)-5674
(-10)+5-(29-1075
Thực hiện phép tính (tính nhanh nếu có thể)
5—8
4—(—3)
15—27
(—6)—7
(—9)—(—8)
(-7)-(-7)
12-(-14)
(-24)+6+10+24
15+23+(-25)+(-23)
(-9)+(11+21)+(-1)
(5674-97)-5674
(-10)+5-(29-1075
5 – 8 = – ( 8 – 5 ) = -3
4 – ( -3 ) = 4 + 3 = 7
15 – 27 = – ( 27 – 15 ) = -12
( -6 ) – 7 = ( -6 ) + ( -7 ) = – ( 6 + 7 ) = -13
( -9 ) – ( -8 ) = -9 + 8 = – ( 9 – 8 ) = -1
( -7 ) – ( -7 ) = -7 + 7 = – ( 7 – 7 ) = 0
12 – ( -14 ) = 12 + 14 = 26
( -24 ) + 6 + 10 + 24 = ( 24 – 24 ) + ( 10 + 6 ) = 16
15 + 23 + ( -25 ) + ( -23 ) = ( 23 – 23 ) + ( 15 – 25 ) = -10
( -9 ) + ( 11 + 21 ) + ( -1 ) = [ ( -9 ) + ( -1 )] + 32 = ( -10 ) + 32 = 32 – 10 = 22
( 5674 – 97 ) – 5674 = 5674 – 97 – 5674 = ( 5674 – 5674 ) – 97 = 0 – 97 = -97
( -10 ) + 5 – ( 29 – 1075 )
= ( -10 ) + 5 – 29 + 1075
= ( 1075 + 5 ) – ( 10 + 29 )
= 1080 – 39
= 1041