Phdng GD-DT TP Nam DinhTrulng THCS Phirng Chi Ki6n DE KIEM TRA 8 TUAN HOC Ti'I NAu Hec zotT - zois TT,TON TOAN.. Tia AB vd tia AC trung nhau c.. VO doqn thAng MA, tia MO, dudrng thing MB
Trang 1Phdng GD-DT TP Nam Dinh
Trulng THCS Phirng Chi Ki6n DE KIEM TRA 8 TUAN HOC Ti'I
NAu Hec zotT - zois
TT,TON TOAN LOP 6
13r,An tr6c nghi Qm (2,0 di€m):H^,
"Tl;;i#,,?{:lI'#!W{:;f#Z:;1{:l
Ciu 1 Cho tfp hqp M : {2; l0 25} Khi d6 :
Ciu2 K6tqui phdp tinh 55.57 bing :
A 535 - B 5r2
a) 18.65 + 35.18
c) 120+ t 80 - (20- LZ)'l
Blri 3: g.S aiaml Tim sO t.u ntien x, bi5t:
C.{10;2s}c M
c.2512
CAu 3 K6t qui ph6p tit'th (216 .5 + 3 .2'6) : 2 15 bing :
C6u 4 (92)3 c6 gi6 tri bing:
Cffu 5 SO ZS:OS ta sO
A chia h6t cho 2 vd 3
C chia het cho Z vd 5
Ciu 6 Hiqu 11.9.5.2- 48 chia h6t cho
4.2 vd3 8.2 vd9 C 3 vi 5 D.2 vd 5
Ciu 7 SO dopn th6ns c6 trong hinh 1 ld:
cAu 8 Ei€m B nim gifra hai di€m A vi C Khang dinh ndo sau d6y 1d sai ?
A Tia BA vd tia BC d6i nhau B Tia AB vd tia AC trung nhau
c Di6m A thuQc tia BC D Ei6m A thu6c tia cB
II Phin tr; lu$n (8,0 diA@: -; - -."
Bai 1 (3.0 dia@ Thuc hiQn c6c ph6p tinh (tinh nhanh neu c6 ttrc;
b) 28:20 + 32 33
d) 434 - 3a :33 + 252 : 52
c) 52*-: - 2 52 : 52 3
D {10}e M
D 10r2
D 16
D g12
B chia hdt cho 3 vd 5
D chia h5t cho 9
a)5(x+3):15 b) 20+ 5x: 5s : 53
B?i3._.(?,0 diAd Vd dulng thEng xy.L6,y di6m O tr6n duong thing xy, di6m A thuQc tia
Ox, di6m B thu$c tia Oy,
a) Vi6t t6n cdc tiat*ng nhau g6c O
b) ViCt t6n c6c tia d6i nhau g6c A
i\eV di6m M b6t ki kh6ng thuQc ducmg thang xy VO doqn thAng MA, tia MO, dudrng
thing MB
Bii 4 (r.s dia@
a) Cho A =5 +52+53 + + 52016 Tim x dd 4A+5 = 5*
b) Chrmg minh tfch cria 4 s6 tg nhi6n li€n ti6p cQng 1 lu6n ld s6 chinh phucrng