Grade 3 Addition Worksheets | Free Printables | Math Worksheets - Free Printable

Problem: Solve the column addition equations.

The task involves performing column addition for each pair of numbers provided. Let's solve each equation step by step.

---

#### Equation 1:
$$
86 + 45
$$
- Add the units place: \(6 + 5 = 11\). Write down 1 and carry over 1.
- Add the tens place: \(8 + 4 = 12\), plus the carried 1 gives \(13\).
- Result: \(131\).

$$
\boxed{131}
$$

---

#### Equation 2:
$$
72 + 59
$$
- Add the units place: \(2 + 9 = 11\). Write down 1 and carry over 1.
- Add the tens place: \(7 + 5 = 12\), plus the carried 1 gives \(13\).
- Result: \(131\).

$$
\boxed{131}
$$

---

#### Equation 3:
$$
38 + 47
$$
- Add the units place: \(8 + 7 = 15\). Write down 5 and carry over 1.
- Add the tens place: \(3 + 4 = 7\), plus the carried 1 gives \(8\).
- Result: \(85\).

$$
\boxed{85}
$$

---

#### Equation 4:
$$
58 + 96
$$
- Add the units place: \(8 + 6 = 14\). Write down 4 and carry over 1.
- Add the tens place: \(5 + 9 = 14\), plus the carried 1 gives \(15\).
- Result: \(154\).

$$
\boxed{154}
$$

---

#### Equation 5:
$$
67 + 49
$$
- Add the units place: \(7 + 9 = 16\). Write down 6 and carry over 1.
- Add the tens place: \(6 + 4 = 10\), plus the carried 1 gives \(11\).
- Result: \(116\).

$$
\boxed{116}
$$

---

#### Equation 6:
$$
82 + 79
$$
- Add the units place: \(2 + 9 = 11\). Write down 1 and carry over 1.
- Add the tens place: \(8 + 7 = 15\), plus the carried 1 gives \(16\).
- Result: \(161\).

$$
\boxed{161}
$$

---

#### Equation 7:
$$
84 + 66
$$
- Add the units place: \(4 + 6 = 10\). Write down 0 and carry over 1.
- Add the tens place: \(8 + 6 = 14\), plus the carried 1 gives \(15\).
- Result: \(150\).

$$
\boxed{150}
$$

---

#### Equation 8:
$$
27 + 99
$$
- Add the units place: \(7 + 9 = 16\). Write down 6 and carry over 1.
- Add the tens place: \(2 + 9 = 11\), plus the carried 1 gives \(12\).
- Result: \(126\).

$$
\boxed{126}
$$

---

#### Equation 9:
$$
827 + 349
$$
- Add the units place: \(7 + 9 = 16\). Write down 6 and carry over 1.
- Add the tens place: \(2 + 4 = 6\), plus the carried 1 gives \(7\).
- Add the hundreds place: \(8 + 3 = 11\).
- Result: \(1176\).

$$
\boxed{1176}
$$

---

#### Equation 10:
$$
284 + 627
$$
- Add the units place: \(4 + 7 = 11\). Write down 1 and carry over 1.
- Add the tens place: \(8 + 2 = 10\), plus the carried 1 gives \(11\). Write down 1 and carry over 1.
- Add the hundreds place: \(2 + 6 = 8\), plus the carried 1 gives \(9\).
- Result: \(911\).

$$
\boxed{911}
$$

---

#### Equation 11:
$$
443 + 926
$$
- Add the units place: \(3 + 6 = 9\).
- Add the tens place: \(4 + 2 = 6\).
- Add the hundreds place: \(4 + 9 = 13\).
- Result: \(1369\).

$$
\boxed{1369}
$$

---

#### Equation 12:
$$
347 + 526
$$
- Add the units place: \(7 + 6 = 13\). Write down 3 and carry over 1.
- Add the tens place: \(4 + 2 = 6\), plus the carried 1 gives \(7\).
- Add the hundreds place: \(3 + 5 = 8\).
- Result: \(873\).

$$
\boxed{873}
$$

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Final Answers:

1. \( \boxed{131} \)
2. \( \boxed{131} \)
3. \( \boxed{85} \)
4. \( \boxed{154} \)
5. \( \boxed{116} \)
6. \( \boxed{161} \)
7. \( \boxed{150} \)
8. \( \boxed{126} \)
9. \( \boxed{1176} \)
10. \( \boxed{911} \)
11. \( \boxed{1369} \)
12. \( \boxed{873} \)