67+97=164.Some strategies you can use to solve this on paper or in your head can be to do+60+90=? then do 7+7=? then add the answers to both.Another strategy is to do 70+100=70,but since you added 3 to each number to make them an even number,you must minus 6 from 170,so 170-6.
67 is less than 97.
67 = x + 97-30 = x
No.
2 is the least prime number. 67 is less than 97.
67
67
67.9175
6499
97x67=6499
67
61, 23, 97, 41, 67 yes. 51, 93, 39, no.
They are: 61 67 71 73 79 83 89 and 97