Each purple book has 230 pages. Each orange book contains 510 pages. Mirella read 5 purple books and 4 orange books. How many more orange pages did she read than purple pages?
Purple = 5 * 230 = <<5*230=1150>>1150 pages
Orange = 4 * 510 = <<4*510=2040>>2040 pages
2040 - 1150 = <<2040-1150=890>>890
Mirella read 890 more orange pages than purple pages.
#### 890
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
You are solving math problems. Here are some examples of how to solve the task:

In the fall, a tree drops a tenth of its initial quantity of leaves each day over the course of four days, then abruptly drops the rest on the fifth day. If it had 340 leaves before they started to fall, how many leaves does it drop on the fifth day?The tree drops 340 / 10 = <<340/10=34>>34 leaves for each of the four days.
Thus, it drops 34 * 4 = <<34*4=136>>136 leaves over the first four days.
Therefore, it drops 340 - 136 = <<340-136=204>>204 leaves on the fifth day.
#### 204[END]

Helen cuts her lawn starting in March and finishes in October.  Her lawn mower uses 2 gallons of gas every 4th time she cuts her lawn.  For March, April, September and October, she only cuts her law 2 times per month.  In May, June, July and August, she has to cut her lawn 4 times per month.  How many gallons of gas will she need to cut her lawn from March through October?For March, April, September and October, she cuts her lawn 2 a month. There are 4 months so she cuts her yard 2*4 = <<2*4=8>>8 times
For May, June, July and August, she cuts her lawn 4 times a month. There are 4 months so she cuts her yard 4*4 = <<4*4=16>>16 times
During the entire 8 month period, she cuts her lawn 8+16 = <<8+16=24>>24 times
Every 4th time she cuts, she needs 2 gallons of gas. If she cuts her lawn 24 times a year then she needs to fill up 24/4 = 6 times
Each time she fills up, it takes 2 gallons of gas so 2*6 = <<2*6=12>>12 gallons of gas per year
#### 12[END]

Now, solve this next question in the style of the above examples:

Each purple book has 230 pages. Each orange book contains 510 pages. Mirella read 5 purple books and 4 orange books. How many more orange pages did she read than purple pages?

### Response:
Purple = 5 * 230 = <<5*230=1150>>1150 pages
Orange = 4 * 510 = <<4*510=2040>>2040 pages
2040 - 1150 = <<2040-1150=890>>890
Mirella read 890 more orange pages than purple pages.
#### 890