a warehouse holds 460 boxes. They ship out 65 boxes each week. After how many weeks will the warehouse have less than 100 boxes remaining?

Start playing around with multiplication or subtraction. Multiplication for example, 4 (weeks) x 65 (boxes each week) = 260 460-260=200 so not enough…subtraction way 460-65=395, 395-65=330, etc. So with multiplication 6x65=390, 460-390=70. It will take 6 weeks before the warehouse has less than 100 boxes remaining.