Sinflar uchun matematika fanidan test savollari a 4, b 6, h bo’lsa, S=

7 sinflar uchun matematika fanidan test savollari
1.a=2.4 , b=3.6, h=1.6 bo’lsa, S=
A.48 B.3.18 C.6.36 D.0.48 E.4.8
2. a=12.5 , b=6.4, bo’lsa, S=
A. 40 B. 400 C. 4 D. 36.1 E. 37.1
3. .a=5.1 , b=4.7, bo’lsa, p=
A.196 B.19.6 C.1.96 D. 18.16 E.18.14
4. a=2.5 , b=2.4, c=3.5 bo’lsa, v=
A.18.3 B.21 C.2.1 D.12.1 E.54.5
5. a=50.45, b=6.4, c=4.5 bo’lsa, S=
A. 50.45 B. 83.3 C. 1666.6 D. 109 E.54.5
6.qavslarni oching va soddalashiring: 5a-(3a-(4a=3))
A. 8a+3 B. 4a-3 C. -4a-3 D. 3-4a E.4a+3
7.Ifodani son qiymatini toping:(64.2*7.02+17.9*14.04):4
A. 169 B. 16.9 C. 159 D. 15.9 E.149
8.Ifodani son qiymatini toping: 3
A. 67 B. 3.788 C. -6.2 D. -3.788 E.9.3
9.Ifodani son qiymatini toping: (35.7*12.24-21.4*6.12):1
A.578 B. 306 C. 162 D. 16.2 E.-16.2
10.Ifodani son qiymatini toping: (-15)*(2.7:(-0.9)-(-7.2):3.6+2.4*(-2.5)
A. -6 B. -7.5 C. 7.5 D. -4.5 E.4.5
11.Tenglamani yeching: 8(x+2)-5x=-2(x+4.5)
A. -5 B. 5 C. 6 D. -4.5 E. TJY
12.tenglaman yeching: 3(x+2)-2(x+3)=7-5(x+1)
A. -1/3 B. 1/3 C. -1 D. 2 E.-2/3
13.Tenglamani yeching: +2=1.5x-
A. 2 B. 4 C. 2/3 D. -2/3 E.yechimi yo’q
14.teng yonli uchburchakni perimetri 51 sm ga teng.Asos yon tomonidan 6 sm uzun.Shu uchburchak yon tomonining asosiga nisbatini toping.
A. 1.4 B. 5/7 C. 2.3 D. 10/7 E.0.7
15.Ona farzandlari uchun a so’mdan 8 ta rasm daftar, b so’mdan 5 ta ro’chka , c so’mdan 20 ta daftar sotib oldi.Jami xaridni hisoblash chun ifoda tuzing.
A. 33(a+b+c) B. 8a+25(b+c) C. 80abc D. 8a+abc E.8a+5b+20c
16.a=2.7, b=42 bo’lsa 3(2ab-b)-2(a-2ab) ni son qiymatini toping

17.To’g’ri to’rtburchakni ng yuzi S ga asosi a ga teng.Uning perimetri ni toppish uchun ifoda tuzing.
A. B. C. 2( D. E.
18. Ko’phadlarni ko’paytiring: (a-b)(a+b)( )
A. B. C. D. E.
19.Bo’lishni bajaring: (16
20.Ko’paytirishni bajaring: (4a- )*(-3x)
21.Soddalashtiring ; 5a (0.4a-b)-4a(1/4a-b)
22.Ko’paytirishning algebraic yig’indisini toping: (0.5a+
23.Ko’phadlarni ko’paytiring : (a+2b)(a-2b)(
24.hisoblang:
25.Hisoblang.