Solutions by everydaycalculation.com
1445 - 1045 is 445.
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Related: 28/45-10/45 14/45-20/45 14/90-10/45 14/45-10/90 42/45-10/45 14/45-30/45 70/45-10/45 14/45-50/45 98/45-10/45 14/45-70/45
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