10×10=30×2=12×3=40×3=35×2=3×50=300x7=200x4=100100030003003000300×10=30006060060×10=60010300×30=90003003×=9000030093×3=960×30=1800603×=18000:6×3=18,182
3080x10=60x20=50x40=24x10=400x20=90x90=40x80=12x200=80012008000240320020008100240000