Free 2nd Grade Math Worksheets with Answer Keys - Practice addition, subtraction, and word problems with these printable "Mad Minutes" worksheets.

The image shows a collection of 2nd Grade Math Worksheets with various arithmetic problems and story questions. Below, I will solve one problem from each worksheet to demonstrate the solution process.

---

Worksheet: 2nd Grade Mad Minutes - A

#### Problem:
```
80
+ 7
---
```

#### Solution:
Add the numbers:
\[
80 + 7 = 87
\]

---

Worksheet: 2nd Grade Mad Minutes - F

#### Problem:
```
Write the missing numbers:
600 + __ = 630
```

#### Solution:
To find the missing number, subtract 600 from 630:
\[
630 - 600 = 30
\]
So, the missing number is:
\[
600 + 30 = 630
\]

---

Worksheet: 2nd Grade Mad Minutes - C

#### Problem:
```
100
- 6
---
```

#### Solution:
Subtract 6 from 100:
\[
100 - 6 = 94
\]

---

Worksheet: 2nd Grade Mad Minutes - M

#### Problem:
```
Arrange the numbers in order from smallest to largest:
263, 137, 832
```

#### Solution:
Compare the numbers:
- 137 is the smallest.
- 263 is larger than 137 but smaller than 832.
- 832 is the largest.

So, the order is:
\[
137, 263, 832
\]

---

Worksheet: 2nd Grade Mad Minutes - G

#### Problem:
```
10
+ 110
---
```

#### Solution:
Add the numbers:
\[
10 + 110 = 120
\]

---

Worksheet: 2nd Grade Mad Minutes - H

#### Problem:
```
500
- 6
---
```

#### Solution:
Subtract 6 from 500:
\[
500 - 6 = 494
\]

---

Worksheet: 2nd Grade Mad Minutes - K

#### Problem:
```
730
+ 36
---
```

#### Solution:
Add the numbers:
\[
730 + 36 = 766
\]

---

Worksheet: 2nd Grade Mad Minutes - J

#### Problem:
```
355
- 2
---
```

#### Solution:
Subtract 2 from 355:
\[
355 - 2 = 353
\]

---

Worksheet: 2nd Grade Mad Minutes - L

#### Problem:
```
200
- 3
---
```

#### Solution:
Subtract 3 from 200:
\[
200 - 3 = 197
\]

---

Story Question (Worksheet F)

#### Problem:
Sam has 233 marbles. His friend gives him 19 more. How many marbles does he have now?

#### Solution:
Add the marbles Sam originally had to the marbles his friend gave him:
\[
233 + 19 = 252
\]
So, Sam now has 252 marbles.

---

Final Answer

\[
\boxed{87, 30, 94, 137, 263, 832, 120, 494, 766, 353, 197}
\]