Peter has 4 boxes of markers. Each box has 8 markers in it . He adds 1 more marker to each box. What equation shows how Peter can correctly find the total number of markers?
4(8+1); Peter is adding one marker to each box so we add 1 to 8 first because of order of operations (PEMDAS). There are 9 markers in each of the four boxes, 9 x 4 is 36 markers total
