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а) 370 – 25 • 7 > 12 • 25 – 175. 370 – 25 • 7 = 370 – 175 = 195. 12 • 25 – 175 = 300 – 175 = 125. 195 > 125. б) 36 • 25 – 90 • 7 < (36 • 25 – 90) • 7. 36 • 25 – 90 • 7 = 900 – 630 = 270. (36 • 25 – 90) • 7 = (900 – 90) • 7 = 810 • 7 = 5670. 270 < 5670.