Вставь пропущенные цифры:
□(a+3)=1,2a+3,6;
0,25a×9b=□×ab;
4 ab - 2ac=□×(2b - c)
□(a+3)=1,2a+3,6;
0,25a×9b=□×ab;
4 ab - 2ac=□×(2b - c)
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Answers & Comments
□(a+3)=1,2(a+3)
1,2(a+3)=1,2a+3,6
2). 0,25a×9b=□×ab
2,25хab=2,25×ab
3). 4 ab - 2ac=□×(2b - c).
2aх(2b - c)=□×(2b - c)
2a×(2b - c)=2а×(2b - c)