1. Brian bought t marbles. Ronnie bought 17 marbles less than Brian. How many marbles did Ronnie buy?   t − 17   17 − t   t + 17   17   Hint Half-n-half Clue   2. Virginia bought f pencils. Sharon bought 15 pencils more than Virginia. How many pencils did Sharon buy?   f  + 15   15   f − 15   15 − f   Half-n-half Clue   3. Virginia lost 9 marbles. She had g marbles. How many marbles does Virginia have now?   g + 9   9   9 − g   g − 9   Half-n-half Clue   4. Brian borrowed 9 golf balls from Ronnie. Ronnie had d golf balls. How many golf balls does Ronnie have now?   d + 9   9   9 − d   d − 9   Half-n-half Clue   5. Virginia scored 9 extra credit points than Ronnie. Ronnie scored h credit points. How many credit points did Virginia score?   h   9 − h   h − 9   h + 9   Half-n-half Clue   6. Brian scored 9 fewer credit points than Ronnie. Ronnie scored p credit points. How many credit points did Brian score?   p − 9   p + 9   9 − p   9   Half-n-half Clue   7. There were 21 dolls in a box. k dolls were taken away. How many dolls are left in the box now?   k + 21   21   k − 21   21 − k   Half-n-half Clue