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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 , , , , . 5 , , 5?
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