14
Sana________________
7 - nazorat ishi
I variant
1.
Sonlarni koordinata to‘g‘ri chizig‘i yordamida qo‘shing:
а) 2 va –5; b) –4 va 6; c) –3 va –2.
2.
Yig‘indining qiymatini toping: а) –12 + (-8); b) –5,4 + (-3,5);
c)
3
2
4
3
; d)
30
19
2
20
11
3
.
3.
Qo‘shishni bajaring: а) 37 + (-56); b) –3,08 + 1,69;
c)
6
5
9
2
; d)
6
5
9
4
3
2
.
4.
Ayirishni bajaring: а) 48 – (-15); b) –3,2 – (-6,3);
c)
6
5
4
3
; d)
6
1
9
9
8
7
.
5. Tenglamani yeching: а) 7,1 +
х
= -1,8; b)
12
7
3
1
х
II variant
1.
Sonlarni koordinata to‘g‘ri chizig‘i yordamida qo‘shing:
а) 8 и –3; b) –2 и 6; c) –5 и –4.
2.
Yig‘indining qiymatini toping: а) –35 + (-24); b) –17,2 + (-5,9);
c)
7
4
5
4
; d)
7
6
1
7
5
4
.
3.
Qo‘shishni bajaring: а) 48 + (-67); b) –6,5 + 8,23;
c)
5
4
10
3
; d)
14
3
4
7
5
3
.
4.
Ayirishni bajaring: а) 38 – (-16); b) –18,9 – (-6,3);
c)
12
7
8
5
; d)
6
5
2
14
3
3
.
5. Tenglamani yeching: а) 6,7 +
х
= -4,3; b)
6
5
18
11
х