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. , , , , . , , , , .
1. 11
, 10, , , 11?
, 63 11. , 11 :
6_3
:
6_(6 3)_3
:
63*11=693
, , :
79*11=
7_(7 9)_9
(7 1)_6_9
79*11=869
2. , 5
, 5, . 25, :
45*45=4*(4 1)_25=2025
3. 5
5 , , 5?
2. , 0 , , 5 :
1248*5=(1248/2)_(0 5)=624_(0 5)=6240 ( 2 )
4469*5=(4469/2)_(0 5)=(2234.5)_(0 5)=22345 ( 2 )
4. 4
, , 4, . 4, 2, 2:
67*4=67*2*2=134*2=268
5. 15%
15% - , , . 10% ( 10) 10%.
15% 884 =(10% 884 ) ((10% 884 )/2)=88.4 44.2 = 132.6
6.
, , , :
32*125
16*250
8*500
4*1000=4000
7. 5
5 . , 2 :
175/5
2: 175*2=350
: 35.0 35
1244/5
2: 1244*2=2488
: 248.8
8. 1000
, , 9, , 10:
1000-489=(9-4)_(9-8)_(10-9)=511
, , , , .
"":
1 - .
2 - .
...
17 -
18 -
19 -
20 - Wi-Fi
21 -
...
48 - ,
49 - ,
50 -
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