a) -7264 + (1543+7264)
b) (144 - 97) - 144
c) (-145) - (18 - 145)
Có thể giúp mik được ko ạ!
Bỏ ngoặc rồi tính:
a) -7264 + (1543 + 7264) b) (144 - 97) - 144 c) (-145) - (18 - 145)
d) 111 + (-11 + 27) e) (27 + 514) - (486 - 73) f) (36 + 79)+ (145 - 79 - 36)
a: \(-7264+\left(1543+7264\right)\)
\(=-7264+1543+7264\)
\(=\left(-7264+7264\right)+1543\)
=0+1543
=1543
b: \(\left(144-97\right)-144\)
\(=144-97-144\)
\(=\left(144-144\right)-97\)
=0-97
=-97
c: \(\left(-145\right)-\left(18-145\right)\)
\(=-145-18+145\)
\(=\left(-145+145\right)-18\)
=0-18
=-18
d: \(111+\left(-11+27\right)\)
\(=\left(111-11\right)+27\)
=100+27
=127
e: \(\left(27+514\right)-\left(486-73\right)\)
\(=27+514-486+73\)
\(=\left(27+73\right)+\left(514-486\right)\)
\(=100+28=128\)
f: \(\left(36+79\right)+\left(145-79-36\right)\)
\(=36+79+145-79-36\)
\(=\left(36-36\right)+\left(79-79\right)+145\)
=0+0+145
=145
bỏ ngoặc rồi tính
1) -7264+(1543+7264)
2) (144-97)-144
3) (-145)-(18-145)
4) 111+(-11+27)
giúp mk nha các bn
1)-7264+(1543+7264)=-7264+1543+7264=(-7264+7264)+1543=0+1543=1543
2) (144-97)-144=144-97-144=(144-144)-97=0-97=-97
3) -145-(18-145)=-145-8+145=(-145+145)-8=0-8=-8
4)111+(-11+27)=111-11+27=100+27=127
1) 1543
2) -97
3) -18
4) 127
Nhớ tick mình nha !!!!! Đúng 100% đấy!!!!!
-7264 + 1543 + 7264
= -5721 +7264
= 1543
144 -97 -144
= 144 - 144 - 97
=-97
-145 - 18 + 145
=-163 + 145
= -18
sorry cau cuoi to khong lam duoc
tick nha
Bài 2 : Bỏ ngoặc rồi tính :
1) - 7264 + ( 1543 + 7264 ) 2) ( 144 - 97 ) - 144
3) ( - 145 ) - ( 18 - 145 ) 4) 111 + ( - 11 + 27 )
5) ( 27 + 514 ) - ( 486 - 73 ) 6) ( 36 + 79 ) + ( 145 - 79 - 36 )
7) 10 - [ 12 - ( - 9 -1 ) ] 8) ( 38 - 29 + 43 ) - ( 43 + 38 )
9) 271 - [( - 43 ) + 271 - ( - 17 )] 10) - 144 - [ 29 - ( + 144 ) - ( + 144 )]
Giúp mình vớiiiiiiiiiii
tham khảo
1/ -7264 + (1543 + 7264)
= -7264 + 7264 + 1543
= 0 + 1543 = 1543
2/ (144 - 97) - 144
= 144 - 144 - 97
= 0 - 97 = -97
3/ -145 - (18 - 145)
= -145 + 145 - 18
= 0 - 18 = 18
4/ 111 + (-11 + 27)
= 111 - 11 + 27
= 100 + 27 = 127
5/ (27 + 514) - (486 - 73)
= 27 + 514 - 486 + 73
= 27 + 73 + 514 - 486
= 100 + 28
= 28
6/ (36 + 79) + (145 - 79 - 36)
= 36 + 79 + 145 - 79 - 36
= 36 - 36 + 79 - 79 + 145
= 145
7/ 10 - [12 - (-9 - 1)]
= 10 - (12 + 9 + 1)
= 10 - (12 + 10)
= 10 - 10 - 12
= -12
8/ (38 - 29 + 43) - (43 + 38)
= 38 - 29 + 43 - 43 - 38
= 38 - 38 + 43 - 43 - 29
= -29
9/ 271 - [(-43) + 271 -(-17)]
= 271 - (-43 + 271 + 17)
= 271 + 43 - 271 - 17
= 43 - 17 = 26
10/ -144 - [29 - (+144) - (+144)]
= -144 - 29 + 144 + 144
= -29 + 144
= 115
a) -7264 + (1543 + 7264)
b) (144 – 97) – 144
c) (-145) – (18 – 145)
d) 111 + (-11 + 27)
e) (27 + 514) – (486 – 73)
giúp mk vs mình cần lun bây giờ bạn nào biết trả lời mk KB và Tick
a) -7264 + (1543 + 7264)
= -7264 + 1543 + 7264
= ( -7264 + 7264) + 1543
= 0 + 1543
= 1543
b) (144 – 97) – 144
= 144 - 97 - 144
= (144 - 144) - 97
= 0 - 97
= -97
c) (-145) – (18 – 145)
= -145 - 18 + 145
= (-145 + 145) - 18
= 0 - 18
= -18
d) 111 + (-11 + 27)
= [111+(-11)] + 27
= 0 + 27
= 27
e) (27 + 514) – (486 – 73)
= 27 + 514 - 486 + 73
= (27 + 73) + (514 - 486)
= 100 + 28
= 128
a,1543
b,-97
c,-18
d,127
e,128
BÀI 2: BỎ NGOẶC RỒI TÍNH (ghi rõ từng bước của phép tính)
1) -7264 + (1543 + 7264)
2) (144 – 97) – 144
3) (-145) – (18 – 145)
4) 111 - (-11 + 107)
5) (27 + 514) – (486 – 73)
6) (36 + 79) + (145 – 79 – 36)
1) - 7264 + ( 1543 + 7264 )
= ( - 7264 + 7264 ) + 1543
= 0 + 1543
= 1543
2) ( 144 - 97 ) - 144
= ( 144 - 144 ) - 97
= 0 - 97
= - 97
3) ( - 145 ) - ( 18 - 145 )
= ( - 145 + 145 ) - 18
= 0 - 18
= - 18
4) 111 - ( - 11 + 107 )
= ( 111 + 11 ) + 107
= 122 + 107
= 229
5) ( 27 + 514 ) - ( 486 - 73 )
= ( 27 + 73 ) + ( 514 - 486 )
= 100 + 28
= 128
6) ( 36 + 79 ) + ( 145 - 79 - 36 )
= ( 36 - 36 ) + ( 79 - 79 ) + 145
= 0 + 0 + 145
= 145
1) - 7264 + ( 1543 + 7264 )
= ( - 7264 + 7264 ) + 1543
= 0 + 1543
= 1543
2) ( 144 - 97 ) - 144
= ( 144 - 144 ) - 97
= 0 - 97
= - 97
3) ( - 145 ) - ( 18 - 145 )
= ( - 145 + 145 ) - 18
= 0 - 18
= - 18
4) 111 - ( - 11 + 107 )
= ( 111 + 11 ) + 107
= 122 + 107
= 229
5) ( 27 + 514 ) - ( 486 - 73 )
= ( 27 + 73 ) + ( 514 - 486 )
= 100 + 28
= 128
6) ( 36 + 79 ) + ( 145 - 79 - 36 )
= ( 36 - 36 ) + ( 79 - 79 ) + 145
= 0 + 0 + 145
= 145
tính hợp lý
1)15+23+(-25)+(-23)
2)-7264+(1543+7264)
3)(144-97)-144
4)(-145)-(18-145)
5)(27+514)-(486-73)
1)15+23+(-25)+(-23)
= [ 15 + ( -25 )] + [ 23 + (-23 ) ]
= - 10 + 0
= -10
2)-7264+(1543+7264)
= [ ( -7264 ) + 7264 ] + 1543
= 0 + 1543
=1543
1 )
15 + 23 + ( -25 ) + ( -23 )
= [ 15 + ( -25 ) ] + [ 23 + ( - 23 ) ]
= 0 + 0
= 0
à bạn hbfbhdfchcjxcfdfs
bài 1 ra bằng -10 nha
mình tính lộn :<
-7264+(1543+7264)
(144-97)-144
(-145)-(18-145)
111+(-11+27)
(27+514)-(486-73)
(36+79)+(145-79-36)
10-[12-(-9-1)]
(38-29+43)-(43+38)
271-[(-43+271-(-17)]
-144-[29-(+144)-(+144)]
1; - 7264 + (1543 + 7264)
= - 7264 + 1543 + 7264
= (-7264 + 7264) + 1543
= 0 + 1543
= 1543
2; (144 - 97) - 144
= 144 - 97 - 144
= (144 - 144) - 97
= 0 - 97
= - 97
3; (-145) - (18 - 145)
= - 145 - 18 + 145
= (-145 + 145) - 18
= 0 - 18
= - 18
Bỏ ngoặc rồi tính:
a. -7264 + (1543 + 7364)
b. (144 - 97) - 144
c. (-145) - (18 - 145)
d. 111 + (-11 + 27)
e. (27 + 514) - (486 - 73)
minh chi gi ket qua thoi nha
a.1643
b.-97
c.-18
d.127
e.128
a.-7264+(1543+7364)
=-7264+1543+7364
=-7264+7364+1543
=100+1543
=1643
những câu sau tương tự
a, -7264 + 8907 = 1643
b, -97 - 144 = -97
c, -145 - -127 = -18
d, 111 + 16
e, 541 - 413 = 128
Bỏ ngoặc rồi tinh
1/ -7264+(1543+7264)
2/ (144-97)-144
3/(-145)-(18-145)
4/ 111+(-11+27)
5/(27+514)-(486-73)
6/(36+79)+(145-79-36)
7/10-[12-(-9-1)]
8/(38-29+43)-(43+38)
9/271-[(-43)+271-(-17)]
10/-144-[29-(+144)-(+144)]
1) - 7264 + ( 1543 + 7264 )
= - 7264 + 1543 + 7264
= ( - 7264 + 7264 ) + 1543
= 0 + 1543
= 1543
2) ( 144 - 97 ) - 144
= 144 - 97 - 144
= ( 144 - 144 ) - 97
= 0 - 97
= - 97
3) ( - 145 ) - ( 18 - 145 )
= -145 - 18 + 145
= ( - 145 + 145 ) - 18
= 0 - 18
= - 18
4) 111 + ( - 11 + 27 )
= 111 - 11 + 27
= 100 + 27
= 127
các câu còn lại bn tự làm nha
1. -7264+(1543+7264)
=-7264+1543+7264
=[-7264+7264]+1543
=0
1,-7264+(1543+7264)=-7264+1543+7264=(-7264+7264)+1543=0+1543=1543
2,(144-97)-144=144-97-144=(144-144)-97=0-97=-97
3,(-145)-(18-145)=-145-18+145=(-145+145)-18=0-18=-18
4,111+(-11+27)=111-11+27=100+27=127
5,(27+514)-(486-73)=27+514-486+73=(27+73)+(514-486)=100+28=128
6,(36+79)+(145-79-36)=36+79+145-79-36=(36-36)+(79-79)+145=0+0+145=145
7,10-[12-(-9-1)]=10-[12+9+1]=10-12-9-1=10-10-12=0-12=-12
8,(38-29+43)-(43+38)=38-29+43-43-38=(38-38)+(43-43)-29=0+0-29=-29
9,271-[(-43)+271-(-17)]=271-[-43+271+17]=271+43-271-17=(271-271)+(43-17)=0+26=26
10,-144-[29-(+144)-(+144)]=-144-[29-144-144]=-144-[29-144-144]=-144-29+144+144=(-144+144)+(144-29)=0+115=115