diff --git a/1-js/02-first-steps/08-operators/1-increment-order/solution.md b/1-js/02-first-steps/08-operators/1-increment-order/solution.md
@@ -1,5 +1,6 @@

-The answer is:

- `a = 2`
- `b = 2`
@@ -9,10 +10,11 @@ The answer is:
```js run no-beautify
let a = 1, b = 1;

-alert( ++a ); // 2, prefix form returns the new value
-alert( b++ ); // 1, postfix form returns the old value

-alert( a ); // 2, incremented once
-alert( b ); // 2, incremented once
```

diff --git a/1-js/02-first-steps/08-operators/1-increment-order/task.md b/1-js/02-first-steps/08-operators/1-increment-order/task.md
@@ -2,9 +2,9 @@ importance: 5

---

-# The postfix and prefix forms

-What are the final values of all variables `a`, `b`, `c` and `d` after the code below?

```js
let a = 1, b = 1;

diff --git a/1-js/02-first-steps/08-operators/2-assignment-result/solution.md b/1-js/02-first-steps/08-operators/2-assignment-result/solution.md
@@ -1,5 +1,5 @@
-The answer is:

-- `a = 4` (multiplied by 2)
-- `x = 5` (calculated as 1 + 4)

diff --git a/1-js/02-first-steps/08-operators/2-assignment-result/task.md b/1-js/02-first-steps/08-operators/2-assignment-result/task.md
@@ -2,9 +2,10 @@ importance: 3

---

-# Assignment result

-What are the values of `a` and `x` after the code below?

```js
let a = 2;

diff --git a/1-js/02-first-steps/08-operators/3-primitive-conversions-questions/solution.md b/1-js/02-first-steps/08-operators/3-primitive-conversions-questions/solution.md
@@ -16,10 +16,10 @@ undefined + 1 = NaN // (6)
" \t \n" - 2 = -2 // (7)
```

-1. The addition with a string `"" + 1` converts `1` to a string: `"" + 1 = "1"`, and then we have `"1" + 0`, the same rule is applied.
-2. The subtraction `-` (like most math operations) only works with numbers, it converts an empty string `""` to `0`.
-3. The addition with a string appends the number `5` to the string.
-4. The subtraction always converts to numbers, so it makes `"  -9  "` a number `-9` (ignoring spaces around it).
-5. `null` becomes `0` after the numeric conversion.
-6. `undefined` becomes `NaN` after the numeric conversion.
-7. Space characters, are trimmed off string start and end when a string is converted to a number. Here the whole string consists of space characters, such as `\t`, `\n` and a "regular" space between them. So, similarly to an empty string, it becomes `0`.
diff --git a/1-js/02-first-steps/08-operators/3-primitive-conversions-questions/task.md b/1-js/02-first-steps/08-operators/3-primitive-conversions-questions/task.md
@@ -2,9 +2,9 @@ importance: 5

---

-# Type conversions

-What are results of these expressions?

```js no-beautify
"" + 1 + 0
-Original file line number
+Diff line change
@@ @@ -2,9 +2,9 @@ importance: 5 @@
     ---
-    # The postfix and prefix forms
-    What are the final values of all variables `a`, `b`, `c` and `d` after the code below?
     ```js
     let a = 1, b = 1;
@@ Expand Down @@