1/ 11.(-36) - 64 . 11
= 11 ( -36-64)
= 11 x (-100) =-1100
2/ 125 x (-24+24)
= 125 x 0 =0
3/ -125 x 23 + 23 x 225
= 23 ( -125 + 225)
= 23 x 100 = 2300
(-11)(36+64)=-11.100=-1100
125(-24+24)=125.0=0
-23(125-225)=-23.(-100)=2300
Bài 4 : Tinh hop li
1/ (-37) + 14 +26 +37
2/ (-24) +6 +10 +24
3/ 15+23 + (-25) + (-23)
4/ 60 +33 +(-50) +(-33)
5/ (-16) + (-209) + (-14) + 209
6/ (-12) + (-13) +36 + (-11)
cac ban giup minh cau nao thi giup !!
nhung ma ai giup mik het mik se tick cho !!
nhanh len nha mik dang can gap !!
cac ban giup toi cau nay voi:
Thuc hien phep tinh(hop ly neu co the):
(10/99+11/199-12/299)x(1/2-1/3+-1/6)
mong cac ban giup minh nhanh voi a. Minh xin cam on
tinh gia tri bieu thuc
(3.4^2.2^7)^2:(3^2.2^20)
giup minh voi minh can rai gap
ban nao nhanh thi minh tick cho
cam on cac ban nhieu
3x+2-5.3x=36
tim x
giup minh vo cac ban minh dang can gap nha
cam on cac ban nhieu
tinh:1+3+5+7+...+n=36
HAY GIUP TOI VOI LAM ON ! LAM ON HAY TIM CACH NHANH NHAT . CAM ON CAC BAN , TOI DOI ON CAC BAN SUOT DOI
Cac ban tu bi giup minh tr aloi nhung cau hoi ma minh dat ra di,minh dang can gap,ai lam nhanh minh se tich cho nha,cam on cac ban nhiu nhe
bai 1: Tinh
C=1.3+2.4+3.5+......+99.101
giup minh moi minh dang can gap
cam on cac ban nhieu
Tinh nhanh ( neu co ) :
255 - 21 . 5 . ( 198 : 11 - 8 )
Tim x :
720 : [ 41 - ( 2 . x . 5 ) ] = 2 3 . 5
Mong cac ban giup, minh can gap
1.tinh nhanh
(-24)-(-6)-(-10)-(-24)
b) 15-(23)-25-23
c) (-3)-350-7-(-350)
d) (-9)-11+21-1
2...tinh tong
12:48
a) a=1+(-2)+(-3)+4+5+(-6)+(-7)+8+.............+(-1997)+1998)+(-1999)+2000
b) b=2+(-4)+6+(-8)+...........+1998+(-2000)+2002
c) c=1-3+5-7+.......+1995+1997+1999
m..n oi giup ti di ak mk dang can gap lam
