Calculate: a) $$ (-8)+5 $$ d) $$ 12+(-7) $$ g) $$ 3+4 $$ i) $$ 3+(-4) $$ m) $$ (-12)+8 $$ p) $$ (-11)+(-15) $$

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Sure, let's solve each of the given addition problems step by step.

### a) $$ (-8) + 5 $$
When adding a negative number and a positive number, subtract the smaller absolute value from the larger absolute value and keep the sign of the number with the larger absolute value.

$$
-8 + 5 = -(8 - 5) = -3
$$

**Answer:** $$-3$$

---

### d) $$ 12 + (-7) $$
Similarly, subtract the smaller absolute value from the larger absolute value and keep the sign of the number with the larger absolute value.

$$
12 + (-7) = 12 - 7 = 5
$$

**Answer:** $$5$$

---

### g) $$ 3 + 4 $$
Both numbers are positive, so simply add their values.

$$
3 + 4 = 7
$$

**Answer:** $$7$$

---

### i) $$ 3 + (-4) $$
Subtract the smaller absolute value from the larger one and keep the sign of the number with the larger absolute value.

$$
3 + (-4) = -(4 - 3) = -1
$$

**Answer:** $$-1$$

---

### m) $$ (-12) + 8 $$
Subtract the smaller absolute value from the larger one and keep the sign of the number with the larger absolute value.

$$
-12 + 8 = -(12 - 8) = -4
$$

**Answer:** $$-4$$

---

### p) $$ (-11) + (-15) $$
When adding two negative numbers, add their absolute values and keep the negative sign.

$$
-11 + (-15) = -(11 + 15) = -26
$$

**Answer:** $$-26$$

---

### Summary of Results:
- **a)** $$-3$$
- **d)** $$5$$
- **g)** $$7$$
- **i)** $$-1$$
- **m)** $$-4$$
- **p)** $$-26$$
- **a)** $$-3$$ - **d)** $$5$$ - **g)** $$7$$ - **i)** $$-1$$ - **m)** $$-4$$ - **p)** $$-26$$

Calculate: a) \( (-8)+5 \) d) \( 12+(-7) \) g) \( 3+4 \) i) \( 3+(-4) \) m) \( (-12)+8 \) p) \( (-11)+(-15) \)

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