777-(-111)-(-222)+20
Tính tổng sau: 777 – (-111) –(-222) + 20
777 – (–111) – (–222) + 20
= 777 + 111 + 222 + 20
= (777 + 111 + 222) + 20
= 1110 + 20 = 1130.
Tính tổng :
777 - ( - 111) - ( - 222) + 20
=777+111+222+20
=(777+111+222)+20
=1110+20
=1130
bạn phải trình bày ra nhé rồi mình mới tic cho nha
tính
777 - ( -111 ) - ( -222) +20
777 - ( - 111 ) - ( - 222 ) + 20
= 777 + 111 + 222 + 20
= 1130
777-(-111)-(-222)+20
=888-(-222)+20
=1110+20=1130
(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2.................999 x 2 x 2 x 2 ?
A.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 > 999 x 2 x 2 x 2 = 9990 > 7992
B.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 < 999 x 2 x 2 x 2 = 9990 < 7992
C.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 = 999 x 2 x 2 x 2 = 9990 = 7992
(Không báo cáo câu hỏi này!)
(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2.................999 x 2 x 2 x 2 ?
A.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 > 999 x 2 x 2 x 2 = 9990 > 7992
B.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 < 999 x 2 x 2 x 2 = 9990 < 7992
C.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 = 999 x 2 x 2 x 2 = 9990 = 7992
(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2.................999 x 2 x 2 x 2 ?
A.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 > 999 x 2 x 2 x 2 = 9990 > 7992
B.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 < 999 x 2 x 2 x 2 = 9990 < 7992
C.(111 + 222 + 333 + 444 + 555 + 666 + 777 + 888 + 999)x 2 = 999 x 2 x 2 x 2 = 9990 = 7992
111+333+888+666+777+999+444+555+222=???????????????????????????????????????????????????????????/
111 + 333 + 666 + 777 +999 +444 + 555 +222
=(111+999) + (333+777) + (666 + 444) +(555+ 222)
=1110 + 1110+1110 + 777
=1110 * 3 + 777
= 3330+ 777=4107
= 4885 nha tk mk nhé , xin bn lun đó
111 + 333 + 888 + 666 + 777 + 999 + 444 + 555 + 222 = 4995
999+888+777+666+555+444+333+222+111
\(999+888+777+666+555+444+333+222+111\)
\(=\left(999+111\right)+\left(888+222\right)+\left(777+333\right)+\left(666+444\right)+555\)
\(=1110+1110+1110+1110+555\)
\(=\left(1110\times4\right)+555\)
\(=4440+555\)
\(=4995\)
=(999+111)+(888+222)+(777+333)+(666+444)+555
=1110+1110+1110+1110+555
=1110 x 4 +555
=4440+555
=4995
Tính các tổng sau:
a, [(-13)+(-15)]+(-8)
b, 500-(-200)-210-100
c,-(-129)+(-119)-301+12
d, 777-(-111)-(-222)+20
a)
[(-13)+(-15)]+(-8)
= (-28)+(-8)
=-36
b)=390
c)=-297
d)=1130
a) [ (-13) + (-15) ] + (-8)
= (-28) + (-8)
= (-36)
b) 500 - (-200) -210 - 100
= [ 500 - (-200) ] - 210 - 100
= 700 - 210 - 100
= 390
c) (-129) + (-119) - 301 + 12
= (-248) - 301 + 12
= (-549) + 12
= 537
tính các tổng sau
a) [(-13)+(-15)]+(-8)
b) 500-(-200)-210-100
c) -(-129)+(-119)-301+12
d) 777-(-111)-(-222)+20
a) =-36
b) =390
c) =-537
d) =1130
tik mik nha bn ha ji won
555+666+333+222+111+999+000+888+777+444
555+666+333+222+111+999+000+888+777+444=4995
hok tot
555+666+333+222+111+999+000+888+777+444=4995