.
:
, . , 1, 9, 2, 21, 12, 1.
. .
20, 6, 18, 17, 6, 15, 30, 6, 10, 20, 18, 21, 5, 3, 19, 7, 17, 6, 18, 6, 20, 18, 21, 20. ( .)
:
+ + = + +
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( + + + ) + + ( + + + ) = + + +
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II. ( ).
, .
1.
: . .
, ? ( .)
? ( .)
2.
,
. . ? . (24)
3. , . . . ? (146 )
4. . . 4.
. (28)
5. , .
XXXIV = 34 CXC = 190
CXIX = 119 XLIV = 44
.
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III. ( ).
1.
27, 49, 39, 79; 40, 60, 50, 90; 36, 42, 91, 70; 88, 46, 75, 53; 64, 46, 87, 79; 42, 35, 36, 87; 16, 45, 7, 4; 90, 80, 30, 40; 59, 46, 47, 56; 60, 80, 98, 98; 11, 55, 15, 12; 38, 29, 55, 6.
27.
? (16 + 4 = 20 ( ); 16 + 20 = 36 ( ).)
? (45 + 1 = 46 ( ), 45 + 46 = = 91 ( ).)
? (18 + 12 = 30 ( ); 18 + 30 = 48 ( ).)
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? (20 6 = 14 ( ); 20 + 14 = 34 ( ).)
? (10 + 4 = 14 ( ); 10 4 = 6 ( ).)
? (6 + 14 = 20 (); 20 10 = 10 ().)
. (45 )
. (15 + 10 + 5 + 10 = 40 ())
16
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: 100 , , .
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