a) \(450 \div 2 - 250 \div 13 - 7 = 225 - 19,23 - 7 = 198,77 \)
б) \(364 + 116 \div 6 + 70 \div 8 = 364 + 19,33 + 8,75 = 392,08 \)
в) \(200 \times 5 - 250 \div 150 - 12 = 1000 - 1,67 - 12 = 986,33 \)
г) \(480 \div 20 + 80 \div 4 \div 20 = 24 + 20 \div 20 = 24 + 1 = 25 \)
д) \(300 - 40 \div 13 \div 10 \div 20 = 300 - 3,08 \div 10 \div 20 = 300 - 0,308 \div 20 = 300 - 0,0154 = 299,9846 \)
Ответы:
a) 198,77
б) 392,08
в) 986,33
г) 25
д) 299,9846