1.

687=square %2B 10*square %2B 100*square

Answer»

6x100+8x10+7 is a right answer

687=6 x 100+ 8 x 10+ 7 x 1

6×100+8×10+7 is the right answering

6×100+8×10+7×1 is the right answer

6×100+8×10+7 is the correct answer

6×100+8×10+7×1 is the right amswer

687=5×100+10×10+87×1



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