Răspuns:
52•2•431=44.824
509•135=68.715
125•435=54.375
527•35+16•25-13•14•27=
=18.445+400-182•27
=18.445+400-4.914
=13.931
432•59-24•36+23•(248-12•12)=
=432•59-24•36+23•(248-144)
=432•59-24•36+23•104
=25.488-864+2.392
=27.016
36•27+507•25-12•13•27=
=972+12.675-156•27
=972+12.675-4.212
=9.435
35•324+15•(13•13-12•12)-2Y•220=
=35•324+15•(169-144)- 2Y•220
=35•324+15•25-2Y•220
=11.340+375-440Y
=11.275Y
Explicație pas cu pas:
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