The average score on last week's Spanish test was 90.  Marco scored 10% less than the average test score and Margaret received 5 more points than Marco.  What score did Margaret receive on her test?
The average test score was 90 and Marco scored 10% less so 90*.10 = 
<gadget id="calculator">90*.10</gadget>
<output>9</output>
9 points lower.
The average test score was 90 and Marco scored 9 points less so his test score was 90-9 = 
<gadget id="calculator">90-9</gadget>
<output>81</output>
81.
Margret received 5 more points than Marco whose test score was 81 so she made 5+81 = 
<gadget id="calculator">5+81</gadget>
<output>86</output>
86 on her test.

<result>86</result>