Jawab:
Penjelasan dengan langkah-langkah:
12×10=120
30×10=300
18×10=180:2=90
120+300+90=510cm
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Jawab:
Penjelasan dengan langkah-langkah:
12×10=120
30×10=300
18×10=180:2=90
120+300+90=510cm