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30×1=3030×2=6030×3=9030×4=12030×5=15030×6=18030×7=21030×8=24030×9=27030×10=300
130=0, 130, 260, 390, 520, 650, 780, 910, 1040, 1170
90=0, 90, 180, 270, 360, 450, 540, 630, 720, 810, 900, 990, 1080