... Ȩ....
10
. , , .
1. 11
, 10 0, , 11? :
( 52):
5_2
:
5_(5+2)_2
, : 572.
, , :
9_(9+9)_9
(9+1)_8_9
10_8_9
1089 .
2.
, 5. +1, 25. !
252 = (2x(2+1)) & 25
2 x 3 = 6
625
3. 5
5, , , , ? .
, 2 ( , ). , 0 . , 5. :
2682 x 5 = (2682 / 2) & 5 0
2682 / 2 = 1341 ( , 0)
13410
:
5887 x 5
2943,5 ( ( , 5)
29435
4. 9
. 1 9 9, . , ( 93 ), ( 93 2), ( 7). 27.
5. 4
, . , 2, 2:
58 x 4 = (58 x 2) + (58 x 2) = (116) + (116) = 232
6.
15% , . 10% ( 10), :
15% $25 = (10% 25) + ((10% 25) / 2)
$2.50 + $1.25 = $3.75
7.
, , , :
32 x 125 , :
16 x 250 , :
8 x 500 , :
4 x 1000 = 4,000
8. 5
5 . , , - 2 : 195 / 5
1: 195 * 2 = 390
2: : 39,0 39.
2978 / 5
1: 2978 * 2 = 5956
2: 595,6
9. 1000
1000, : 9 , . 10: 1000
-648
1: 9 6 = 3
2: 9 4 = 5
3: 10 8 = 2
: 352
10.
5: 10 2.
6: 3, 2.
9: 10 .
12: 10 .
13: 3 10 .
14: 7, 2.
15: 10 5 , .
16: , 4 2. 8, 2.
17: 7 10 .
18: 20 .
19: 20 .
24: 8, 3.
27: 30 3 .
45: 50 5 .
90: 9 0. 98: 100 .
99: 100 .
:
.
7% 300. ?
:
(Percent). (PER) , 10 listverse. PER = . (CENT), 100. , = 100 . 100 1 . , = .
, , 7% 100 7. (7 , ).
8% 100 = 8.
35,73% 100 = 35,73
??
7% 300. 7%
7. 7%, 7, 7% - 7.
, 7 + 7 + 7 = 21.
8% 100 = 8, 8% 50 = 4 ( .
, 100, 100, .
:
8% 200 = ? 8 + 8 = 16.
8% 250 = ? 8 + 8 + 4 = 20,
8% 25 = 2,0 ( ).
15% 300 = 15+15+15 =45,
15% 350 = 15+15+15+7,5 = 52,5
, : 3% 100 , 100% 3. 35% 8 , 8% 35.
2.
3.
4.
