Using Parentheses In Calculations - HP 17bll+ User Manual

In the second case, the
result of 750 x 12.
Here's a longer chain calculation.
This calculation can be written as: 456 − 75 ÷ 18.5 x 68 ÷ 1.9.
Watch what happens in the display as you key it in:
Keys:
456 75
- /
18.5
*
68 /
1.9
=
v

Using Parentheses in Calculations

Use parentheses when you want to postpone calculating an
intermediate result until you've entered more numbers. For example,
suppose you want to calculate:
If you were to key in 30
intermediate result, 0.35. However, that's not what you want. To de-
lay the division until you've subtracted 12 from 85, use parentheses:
Keys:
30 /( 85
12 )
9
*
=
key acts like the
/
456 - 75
18.5
Display:




85 -12
/ 85
Display:
- 



=
68
×
1.9
30
x 9
- , the calculator would calculate the
Description:
No calculation is done.
Calculates 85 − 12.
Calculates 30 / 73.
Calculates 0.41x 9.
key by displaying the
2: Arithmetic 39