Rename dividing decimals to dividing decimals 4
Retitle file
Dividing an integer by simple decimal
Include decimals representing mutliples of a quarter
Dividing decimals 3 exercise
Start dividing decimals 2
improve hints: fix #58118
Merge remote-tracking branch 'upstream/master' into div-dec
Dividing decimals 2 - some times the answer is a decimal
suggestion from spicyj

not sure if the numbers should be in code tags, but i think it looks better that way.
Calculator behavior/styling improvements

Fix: Calculator giving answer would scroll the entire page to the
top in Firefox (caused by calc history autoscroll)

Fix: a few pixels of history (left side) ending up off-screen. The
above change fixed this in Firefox but IE10 required more.

That fix changes input width to a percentage to work around IE10's
large scrollbar. A fixed sized width either clipped in IE or looked
too small in other browsers.

Fix: "DEG" clipping out of input box in DEG mode (Firefox and IE)
Calculator: Fix natural log, unary minus behavior

The ln fix solves #61320
The unary minus fix solves #61720 and #61655
Rewrite exercise to mix number types and simplify
Grammatical error

Change 'a undefined slope' to 'an undefined slope' by modifying
variable strings.
Moved unary minus precendence behind exponential.
Update the hint to match the modified variable string.
Merge pull request #63006 from Atrytone/master

Grammatical error
subkas
use strict equal
Merge pull request #63634 from mauk81/patch-1

use strict equal