Word Problems: Solve by showing a model.
1.) Steven has 21 fewer marbles than Jessica. If Steven has 43 marbles, how many does Jessica have?
2.) Josh spent $18 on 3 boxes of chocolate. How much did each box cost?
3.) Skyler has 4 times as many books as Karen. If Karen has 6 books, how many books does Skyler have?
4.) On Tuesday, there were 6 rolls of wrapping paper. By Wednesday, 4.5 rolls had been used. How much wrapping paper is left?