Ответ:
a)x · 231 = 693
x=693÷231
x=3
б)x : 405 = 20
x=20×405
x=8100
в)242 : x = 11
x=242×11
x=2662
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Ответ:
a)x · 231 = 693
x=693÷231
x=3
б)x : 405 = 20
x=20×405
x=8100
в)242 : x = 11
x=242×11
x=2662