August 2021 0 2 Report
Установи закономерность м продолжи ряд, дописав два числа 1 4 9 16 25
30 28 29 27 28
1 2 4 8 16

У каких уравнений значение неизвестного 20?
х+3=23, х-10=10, 38-х=30, 20-х=0, х+6+14, х+20=40
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