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. 60
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(. 1).
.
(102 ) .(. 1).

.1
. (23) .

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. (40) .

.3
. 18 – 20. 19 . , , , , .

.4
. 1 1 ( ). . 1 . 1,5 1. , 1 , .5.

.5
. 0,5 ( ) 1:
1 = 21 + 0,5 = 21,5 .
1 , 2.

.6
( ). 1 1/2 (14) 1 2:
1 2=14:2-1=6.
, . , , , . , , .
2 3 1.

.7
. 1 1/3 (21) 1 2:
12=21:3+1=8.

.8
. 2 (42) (40) 3:
23 =42-40=2.
3 1 .

.9
. 2 (36) .

.10
. 1 1/3 1 . , .

.11
. 3 ( 2,5 ) 1:
31=13,5+2,5=16.
3 1 .
. 1, 2 .12.

.12
. 31, 3 1/3 :
3 =13,5:3=4,5.
9 1.

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2,5 2. 1 2 9 3. 3 1.

.14
. 3 2 4, 2.

.15
. 4 1 5. 5 1 .

.16
. 1 II :
12 = (+3) -(II+4c):2=65–64 : 2 = 0,5. 2
5, 2 . 2 1. ( ). . 54 .18.

.17
. 1 1/3 (7) 3 ( ). 3 6 3. 3 4 4, 3 - 3 4.

.18
. 6 1 7 8, 4 4.

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.20
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2, 3, 1 1 : , , , 50 4, 9, 5 2. .

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. 4 , : II(60) 4 , (21,5 ) (14 ) 5:
45 = 64-21,5-14=28,5 .
5 10.
(II). , , , .

.22
. 5 (14) 1 6, 11 6.
5 6=14:2+1=8

.23
. 9 (47) 4. 4. .

.24
. 4 1/3 (21) 1 5:
45 = 21:3+1=8.

.25
. 4 1/3 (21) 1,5 6:
46 =21:3+1,5=8,5.
5 6 , 1. 1 1,5 2. 5, 2 6 .

.26
. 5 1/3 (13,5) 7:
57 = 13,5:3 = 4,5 .

.27
. 4 (12 ) 7. 7 7 .

.28
. 7 1 2. 5 2.

.29
. 7 (33) .

.30
. 2,5 1.

.31
. (14) . .

.32
. II (60) I (53) 1.
1= 60 - 53 = 7.
. 7 .
1.
1 1 , 12, 3:
13= 12.

.33
. 105, (35,5) 4.

.34
. 5 1/4 54(4,65) 3. 3 . 3 4 3 4.

.35
. 3 : (13,5) 52 (4,5) . 5.
35=13,5-4,5=9.
3 5 .

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5, 3 6 .37.
. 11 1,5 12. 12 6 .

.37
. 12 1 13. 13 9 .

.38
.
6 II :
67 = (+3) -(II+4c):2=65–64 : 2 = 0,5, 7:
13 7 . 7, 3. 2 2 4. 4 3 , ( ). . 54 « » .39.

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. 57 8, 14 8. 8 6, 8 - 3 5 9.
14 1,25 15 16, 5 9.

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, 60- () . 5 1-1,5 ( ) 10. 6 10 , . .

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