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We need to solve the arithmetic problems provided in the image. The problems involve addition and subtraction of positive and negative numbers.

ArithmeticInteger ArithmeticAdditionSubtractionPositive NumbersNegative Numbers
2025/6/18

1. Problem Description

We need to solve the arithmetic problems provided in the image. The problems involve addition and subtraction of positive and negative numbers.

2. Solution Steps

Let's solve each problem step-by-step.
2

5. $+8 - (+10) = 8 - 10 = -2$

2

6. $-19 - (-7) = -19 + 7 = -12$

2

7. $-10 - (+70) = -10 - 70 = -80$

2

8. $-5.1 - (+8) = -5.1 - 8 = -13.1$

2

9. $-0.2 - (+4) = -0.2 - 4 = -4.2$

3

0. $+5.2 - (-7.2) = 5.2 + 7.2 = 12.4$

3

1. $-4 + (-3) = -4 - 3 = -7$

3

2. $+6 - (-2) = 6 + 2 = 8$

3

3. $+8 + (-4) = 8 - 4 = 4$

3

4. $-4 - (+6) = -4 - 6 = -10$

3

5. $+7 - (-4) = 7 + 4 = 11$

3

6. $+6 + (-2) = 6 - 2 = 4$

3

7. $+10 - (+30) = 10 - 30 = -20$

3

8. $+19 - (+11) = 19 - 11 = 8$

3

9. $+4 + (-7) + (-2) = 4 - 7 - 2 = -3 - 2 = -5$

4

0. $-3 - (+2) + (-5) = -3 - 2 - 5 = -5 - 5 = -10$

4

1. $-17 - (-1) + (-10) = -17 + 1 - 10 = -16 - 10 = -26$

4

2. $-5 + (-7) - (+9) = -5 - 7 - 9 = -12 - 9 = -21$

4

3. $+9 + (-7) - (-6) = 9 - 7 + 6 = 2 + 6 = 8$

4

4. $-7 - (-8) = -7 + 8 = 1$

4

5. $-10.1 + (-10.1) = -10.1 - 10.1 = -20.2$

4

6. $-75 - (-25) = -75 + 25 = -50$

4

7. $-204 - (+304) = -204 - 304 = -508$

4

8. $-7 + (-11) - (+11) = -7 - 11 - 11 = -18 - 11 = -29$

4

9. $+17 - (+17) = 17 - 17 = 0$

5

0. $-6 + (-7) - (+8) = -6 - 7 - 8 = -13 - 8 = -21$

5

1. $+7 + (-7.1) = 7 - 7.1 = -0.1$

5

2. $-11 - (-4) + (+3) = -11 + 4 + 3 = -7 + 3 = -4$

5

3. $-2 - (-8.7) = -2 + 8.7 = 6.7$

5

4. $+7 + (-11) + (+5) = 7 - 11 + 5 = -4 + 5 = 1$

5

5. $-610 + (-240) = -610 - 240 = -850$

5

6. $-7 - (-3) - (-8) = -7 + 3 + 8 = -4 + 8 = 4$

5

7. $+9 - (-6) + (-9) = 9 + 6 - 9 = 15 - 9 = 6$

5

8. $-1 - (-5) + (-8) = -1 + 5 - 8 = 4 - 8 = -4$

5

9. $-2.1 + (-9.9) = -2.1 - 9.9 = -12$

6

0. $-47 - (-16) = -47 + 16 = -31$

3. Final Answer

2

5. -2

2

6. -12

2

7. -80

2

8. -13.1

2

9. -4.2

3

0. 12.4

3

1. -7

3

2. 8

3

3. 4

3

4. -10

3

5. 11

3

6. 4

3

7. -20

3

8. 8

3

9. -5

4

0. -10

4

1. -26

4

2. -21

4

3. 8

4

4. 1

4

5. -20.2

4

6. -50

4

7. -508

4

8. -29

4

9. 0

5

0. -21

5

1. -0.1

5

2. -4

5

3. 6.7

5

4. 1

5

5. -850

5

6. 4

5

7. 6

5

8. -4

5

9. -12

6

0. -31

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