The number 7 cannot be used to write related number sentences because it wouldn't fit into the equation & make it true. 9 + 5 = 14 5 + 9 = 14 14 - 5 = 9 14 - 9 =5 Nowhere in any of these equations can the #7 go in, & make these number sentences true. Hope this helps & makes sense ! (:
65*7=(1+1+1+1+1+1+1)=65+65+65+65+65+65+65=455 she did 65 sit ups every day for one week the expression is right there the answer to solve it is 455. :)
