reckoning

1 the act of placing a value on the nature, character, or quality of something <that old chest isn't worth much by my reckoning, but an antiques dealer might think otherwise> Synonyms appraisal, appraisement, assessment, estimation, evaluation, estimate, valuationRelated Words calculation, computation, measurement, mensuration; audit, check, checkup, examination, inspection, review, scan, scrutiny, survey; reassessment, transvaluation; overestimation, overevaluation; underestimation

2 the act or process of performing mathematical operations to find a value <you forgot about the decimal point, so your reckoning was way off> Synonyms arithmetic, calculus, ciphering, computation, figures, figuring, math, mathematics, number crunching, numbers, calculationRelated Words addition, division, multiplication, subtraction; calibration, measurement, mensuration; appraisal, assessment, estimation, evaluation, valuation