.
=
2,7
.
10
-1
;
4) 0,0275 = - 2,75
.
=
- 2,75
.
10
-2
.
3. Mustahkamlash.
Test yechiladi.
TESTLAR.
1. 2,701
.
10
-4
+3,205
.
10
-3
yig‗indi quyidagi sonlardan qaysi biriga teng?
A) 3,0215
.
10
-4
B) 3,4751
.
10
-3
C) 5,906
.
10
-1
D) 5,906
.
10
-3
E) 5,906
.
10
-7
2. 1,011
.
10
-3
+2,1
.
10
-4
yig‗indi quyidagi sonlarning qaysi biriga teng?
A) 1,221.10
-3
B) 3,111
.
10
-7
C) 3,111
.
10
-4
D) 3,111
.
10
-3
E) 1,221
.
10
-4
3. 1,015
.
10
-4
+3,14
.
10
-5
yig‗indi quyidagi sonlarning qaysi biriga teng?
A) 1,329
.
10
-4
B) 4,155
.
10
-9
C) 4,155
.
10
-5
D) 4,155
.
10
-4
E) 1,329
.
10
-5
4. 3,104
.
10
-2
+1,81
.
10
-3
yig‗indi quyidagi sonlarning qaysi biriga teng?
A) 4,914
.
10
-3
B) 4,914
.
10
-2
C) 3,285
.
10
-2
D) 3,285
.
10
-3
E) 4,914
.
10
-5
5. 0,0000087 sonini standart ko‗rinishda yozing.
A) 8,7
.
10
-5
B) 8,7
.
10
7
C) 8,7
.
10
-6
D) 8,7
.
10
-7
E) 8,7
.
10
-4
6.
ko‗paytma quyidagi sonlardan qaysi biriga teng emas?
A)
B)
C)
D)
E)
7.
ko‗paytma quyidagi sonlardan qaysi biriga teng emas?
A)
B)
C)
D)
E)
4. Darsni yakunlash.
5. Uyga vazifa: test yechish tematik axborotnomalardan
Tayyorladi: _________________________
Tekshirdi: O‘TIBDO‗ : __________ _________________________
10
1
100
1
026
,
0
0025
,
0
5
10
5
,
6
7
10
650
6
10
65
4
10
65
,
0
3
10
0065
,
0
016
,
0
0015
,
0
5
10
4
,
2
7
10
240
6
10
24
4
10
24
,
0
3
10
0024
,
0
Toshloq tumani
―_____‖____ 201 y.
Sana:_____________
4-mashg‘ulot
Dars mavzusi
.
Oddiy kasrlar.
Dars
maqsadlari
:
o‗quvchilarga
oddiy
kasrlarni
o‗rgatish,
ularning fanga qiziqishlarini oshirish.
Darsning borishi
:
1. Tashkiliy qism.
2. Oddiy kasrlar.
Oddiy kasrlar.
nisbatga
kasr
deyiladi, bu yerda
a
– surat,
b
- maxraj. Agar
a
<
b
bo‗lsa,
kasr
to‘g‘ri kasr
deyiladi, agar
a
>
b
bo‗lsa, kasr
noto‘g‘ri kasr
deyiladi.
Oddiy kasrlarni qo‘shish va ayirish.
Bir xil maxrajli kasrlar
tarzda qo‗shiladi.
Misol:
Har xil maxrajli kasrlar.
Berilgan kasrlar maxrajlarining EKUBi ular uchun umumiy maxraj bo‗ladi:
bu yerda,
.
Misol:
Kasrlarni ko‘paytirish.
Misol:
Kasrlarni bo‘lish.
Misol:
b
a
b
a
b
a
b
c
a
b
c
b
a
;
11
4
22
8
22
7
15
22
7
22
15
;
17
5
17
2
7
17
2
17
7
;
5
3
15
9
15
8
1
15
8
15
1
;
1
7
7
7
5
2
7
5
7
2
d
b
ЭКУБ
ck
at
d
c
b
a
,
d
d
b
ЭКУБ
k
b
d
b
ЭКУБ
t
,
;
,
;
24
7
24
3
10
3
8
3
1
2
12
2
5
8
1
12
5
;
9
1
9
2
3
9
2
3
3
3
1
9
2
3
1
;
22
17
22
11
6
11
2
11
1
2
11
2
3
2
1
11
3
;
15
16
15
6
10
3
5
3
2
5
3
5
2
5
2
3
2
d
b
c
a
d
c
b
a
;
50
21
5
10
3
7
5
3
10
7
;
80
51
20
4
17
3
20
17
4
3
c
b
d
a
c
d
b
a
d
c
b
a
:
EKUB(b,d)
EKUB(b,d)
EKUB(b,d)
Toshloq tumani
Aralash kasrlar.
ko‗rinishdagi kasrga
aralash kasr
deyiladi,
a
– butun qismi,
-
kasr qismi
deyiladi. U quyidagicha noto‗g‗ri kasrga aylantiriladi:
Misol:
.
Aralash kasrlarni qo‘shish va ayirish:
1 –usul:
Misol:
2 –usul:
Misol:
.
, agar
bo‗lsa.
Misol:
.
Agar
bo‗lsa,
Misol:
.
Ko‘paytirish.
Misol
:
.
Bo‘lish.
Misol
:
.
3. Mustahkamlash.
Test yechiladi.
TESTLAR.
1.
ni hisoblang.
A)
B)
C)
D)
E)
;
45
4
5
9
1
4
5
1
9
4
5
:
9
4
;
7
24
7
8
3
8
7
3
8
1
:
7
3
;
24
21
2
12
3
7
2
3
12
7
3
2
:
12
7
;
60
12
5
12
1
:
5
c
b
a
c
b
c
b
c
a
c
b
a
;
7
17
7
3
14
7
3
7
2
7
3
2
9
31
9
4
9
3
9
4
3
k
t
k
d
c
b
c
a
k
t
d
c
b
a
24
17
7
24
185
24
129
56
8
43
3
7
8
3
5
3
1
2
k
t
c
b
d
a
k
t
d
c
b
a
8
5
10
8
3
2
10
8
3
7
4
1
3
k
t
c
b
d
a
k
t
d
c
b
a
k
t
c
b
3
1
1
3
1
2
1
3
1
3
3
2
4
k
t
c
b
k
t
c
c
b
d
a
k
t
d
c
b
a
1
20
17
1
20
17
1
4
3
5
8
1
4
3
5
5
3
2
1
4
4
3
2
5
3
4
k
c
t
k
d
b
c
a
k
t
k
d
c
b
c
a
k
t
d
c
b
a
8
1
15
8
121
2
11
4
11
2
1
5
4
3
2
t
k
d
c
k
b
c
a
k
t
k
d
c
b
c
a
k
t
d
c
b
a
:
:
119
66
17
6
7
11
6
17
:
7
11
6
5
2
:
7
4
1
4
1
3
1
7
2
12
7
6
1
6
1
12
7
Toshloq tumani
2. Amalni bajaring:
A)
B)
C)
D)
E)
3. Amalni bajaring:
A)
B)
C)
D)
E)
.
4.
ni hisoblang.
A)
B)
C)
D)
E)
5.
ni hisoblang.
A)
B)
C)
D)
E)
6.
ni hisoblang.
A)
B)
C)
D)
E)
7.
ni hisoblang.
A)
B)
C)
D)
E)
8.
ni hisoblang.
A)
B)
C)
D)
E)
9.
ni hisoblang.
A)
B)
C) 3,2 D) 2 E) 1,8
10.
ni hisoblang.
A)
B)
C)
D)
E)
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