1)  ACTIVIDAD:
a) 10 -25 =
b) -20 - 13 =
c) (-4) + (-12)=
d) 15- 22+ (-7) =
e) (-2)+(-10) +13 =
f) -12 -20 -23 =
g) 18- (-9) -12 =
h) -9+5-4-6+1=
i) 12 +4-16 + 48-3 =
i) 35 - 12 + 34-8+71=
k) -20+5-13 -4+8=
Completa los lugares con el número que sea necesario (positivo o negativo) para obtener el
resultado:
2)  ACTIVIDAD:
a) -14+    =0
b) -54 +   =0
c) 43 +     =0
d) -7 +     =(-4)

Let's solve each part of the activity step by step.

### **1) ACTIVIDAD:**

a) \( 10 - 25 = -15 \)

b) \( -20 - 13 = -33 \)

c) \( (-4) + (-12) = -16 \)

d) \( 15 - 22 + (-7) = -14 \)

e) \( (-2) + (-10) + 13 = 1 \)

f) \( -12 - 20 - 23 = -55 \)

g) \( 18 - (-9) - 12 = 15 \)

h) \( -9 + 5 - 4 - 6 + 1 = -13 \)

i) \( 12 + 4 - 16 + 48 - 3 = 45 \)

j) \( 35 - 12 + 34 - 8 + 71 = 120 \)

k) \( -20 + 5 - 13 - 4 + 8 = -24 \)

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### **2) ACTIVIDAD:**

Now, let's find the missing numbers:

a) \( -14 + 14 = 0 \)

b) \( -54 + 54 = 0 \)

c) \( 43 - 43 = 0 \)

d) \( -7 + 3 = -4 \)

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If you have any questions or need further clarification, feel free to ask!

### **Relative Questions:**
1. How does adding a negative number differ from subtracting a positive number?
2. Can you explain why subtracting a negative number is equivalent to adding a positive number?
3. What are the steps to solve an equation with multiple operations, such as addition and subtraction combined?
4. Why is the sum of two negative numbers always negative?
5. How does one determine the correct sign when combining multiple positive and negative integers?

**Tip:** When dealing with multiple operations, it’s helpful to work step by step and pay close attention to the signs of the numbers.

1) ACTIVIDAD:
a) 10 -25 =
b) -20 - 13 =
c) (-4) + (-12)=
d) 15- 22+ (-7) =
e) (-2)+(-10) +13 =
f) -12 -20 -23 =
g) 18- (-9) -12 =
h) -9+5-4-6+1=
i) 12 +4-16 + 48-3 =
i) 35 - 12 + 34-8+71=
k) -20+5-13 -4+8=
Completa los lugares con el número que sea necesario (positivo o negativo) para obtener el resultado:
2) ACTIVIDAD:
a) -14+ =0
b) -54 + =0
c) 43 + =0
d) -7 + =(-4)

This page provides step-by-step solutions to arithmetic problems involving the addition and subtraction of integers. Learn how to correctly combine positive and negative numbers to find the right answers, suitable for students in Grades 6-8.

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