You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Roger had 45 dollars in January . By March he had spent 20 dollars . If he got another 46 dollars from his mom , how much money would he have ?
71

Isabel baked 39 cupcakes for her school 's bake sale . If her brother , Todd , ate 21 of them how many packages could she make if she put 3 cupcake in each package ?
6

Haley baked 20 cupcakes for her school 's bake sale . If her brother , Todd , ate 11 of them how many packages could she make if she put 3 cupcake in each package ?

3