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b) 3597 . 34 + 3597 . 65 + 3597 = 3597 . (34 + 65 + 1) = 3597 . 100 = 359700
3597+3597 * 65+3597 * 34 = 3597 * 1 + 3597 * 65+3597 * 34
= 3597 * ( 1 + 65 + 34 )
= 3597 * 100
= 359700
\(27.332+93.43+57.61+69.57\\ =27.332+93.43+57.\left(61+69\right)\\ =27.332+93.43+57.130\\ =8964+3999+7410=20373\\ 34.75+75.66-65.100\\ =\left(34+66\right).75-65.100\\ =100.75-65.100\\ =100.\left(75-65\right)\\ =100.10=1000\\ \left(456.11+912\right).37:13:74\\ =5928:13:\left(74:37\right)\\ =456:2=228\\ 6^2:4.3+2.5^2\\ =36:4.3+2.25\\ =9.3+50=27+50=77\\ 5.4^2-18:3^2\\ =5.16-18:9\\ =80-2=78\\\left[\left(315+372\right).3+\left(372+315\right).7\right]:\left(26.13+74.14\right)\\ =687.\left(3+7\right):\left(338+1036\right)\\ 687.10:1374\\ =6870:1374=5\\ 12:\left\{390:\left[500-\left(125+35.7\right)\right]\right\}\\ =12:\left[390:\left(500-370\right)\right]\\ =12:\left(390:130\right)=12:3=4\\ 192000-\left(1500.2+1800.3+1800.2:3\right)\\ =192000-\left(3000+5400+1200\right)\\ =192000-9600=182400\)
\(47-\left[\left(45.2^4-5^2.12\right):14\right]\) \(50-\left[\left(20-2^3\right):2+34\right]\)
\(=47-\left[\left(45.16-25.12\right):14\right]\) \(=50-\left[\left(20-8\right):2+34\right]\)
\(=47-\left[\left(720-300\right):14\right]\) \(=50-\left[12:2+34\right]\)
\(=47-\left(420:14\right)=47-30\) \(=50-\left[6+34\right]=50-40\)
\(=17\) \(=10\)
a) \(47-\left[\left(45\cdot2^4-5^2\cdot12\right):14\right]\)
\(=47-\left[\left(45\cdot16-25\cdot12\right):14\right]\)
\(=47-\left[\left(720-300\right):14\right]\)
\(=47-\left[420:14\right]=47-30=17\)
a) 5 14 : 5 12 - 3 61 : 3 60 = 5 2 - 3 1 = 25 - 3 = 22
b) 3597 . 34 + 3597 . 65 + 3597 = 3597 . (34 + 65 + 1) = 3597 . 100 = 359700