 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from Susan, a parent: (12+8)/2x42= |
Susan,
These questions drive me bonkers! No one who is interested in mathematics at all would write this.
Since 12 + 8 is inside parentheses you need to evaluate it first to get
20/2x42.
If the goal is to meaningfully transmit information then this would be written (20/2)x42 or 20/(2x42), or 
or 
. Since = 10 × 42 = 420 and = 0.2381 I would assume they are looking for the response 420.
Harley
| ||
| ||
| ||
 |
 |
|
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.