Highlight how many functions students should be writing

Author: pletcher

README.md

@@ -11,6 +11,8 @@ JavaScript Arithmetic Lab
 
 In this lab, we're going to practice writing functions and manipulating numbers in JavaScript. First, though, we need to go over some basic math. In this lab, we're going to learn about various arithmetic operators. What's an operator, you say? It's a symbol that _operates_ on one or more (usually two) objects — `+` is a good example. The `+` operator says "add what's to the left of `+` and what's to the right of `+` together." Easy-peasy!
 
+As you read through this lesson, you're going to be adding your solutions to `index.js`. You'll write a total of eight functions; use the results of running `learn test` in your IDE to guide you towards the right function names and functionality.
+
 ## Basic Math
 
 The most fundamental math operations work as one might expect in JavaScript: `+` adds two numbers; `-` subtracts one number from another; `*` multiplies two numbers; and `/` divides one number by another. For example (as usual, follow along in console!)
@@ -22,7 +24,7 @@ The most fundamental math operations work as one might expect in JavaScript: `+`
 5.0 / 2.5 // 2
 ```
 
-At this point, we can fix the first few broken tests: we can define functions `add()`, `subtract()`, `multiply()`, `divide()` in `index.js`.
+At this point, we can fix the first _four_ broken tests: we can define functions `add()`, `subtract()`, `multiply()`, `divide()` in `index.js`.
 
 ## Math + Assignment
 
@@ -111,7 +113,7 @@ console.log(number) // 5
 
 **Because these methods are more explicit, prefer `+=` to `++` and `-=` to `--` (usually).**
 
-Okay, now we're ready to write solutions for `inc(n)` and `dec(n)`.
+Okay, now we're ready to write solutions for the next two functions: `inc(n)` and `dec(n)`.
 
 ## Parsing Numbers
 
@@ -155,7 +157,8 @@ Unlike `parseInt()`, `parseFloat()` accepts only a single argument, the thing to
 parseFloat('80.123999') // 80.123999
 ```
 
-You're now ready to solve the final tests in this lab, `makeInt(n)` and `preserveDecimal(n)`.
+You're now ready to solve the final two tests in this lab, `makeInt(n)` and `preserveDecimal(n)`.
+
 
 ## Resources