Worksheet for practicing addition and subtraction of integers with 30 problems.

Let's solve each of these integer addition and subtraction problems step by step. We'll use the rules for adding and subtracting integers:

Rules to Remember:

1. Adding two negative numbers: Add their absolute values, result is negative.
2. Adding a positive and a negative number: Subtract the smaller absolute value from the larger one; sign of the result follows the number with the larger absolute value.
3. Subtracting a negative number: This is the same as adding the positive version of that number (i.e., $ a - (-b) = a + b $).
4. Subtracting a positive number: Just subtract normally.

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Now let’s solve each problem:

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1) $(-41) + (-23)$
= $-41 - 23 = -64$

2) $2 + (-29) + (-7)$
= $2 - 29 - 7 = -34$

3) $(-3) + (-20)$
= $-3 - 20 = -23$

4) $40 + (-17) - (-27)$
= $40 - 17 + 27$ (since $-(-27) = +27$)
= $23 + 27 = 50$

5) $(-12) + 21 + (-26)$
= $-12 + 21 - 26 = 9 - 26 = -17$

6) $32 + (-20)$
= $32 - 20 = 12$

7) $18 + (-27)$
= $18 - 27 = -9$

8) $(-32) + (-2)$
= $-32 - 2 = -34$

9) $44 + (-22)$
= $44 - 22 = 22$

10) $48 + (-13) - (-14)$
= $48 - 13 + 14 = 35 + 14 = 49$

11) $22 + (-8)$
= $22 - 8 = 14$

12) $(-1) + (-21) - (-3)$
= $-1 - 21 + 3 = -22 + 3 = -19$

13) $(-27) + (-6) - (-23)$
= $-27 - 6 + 23 = -33 + 23 = -10$

14) $(-22) + (-19) - (-20)$
= $-22 - 19 + 20 = -41 + 20 = -21$

15) $(-37) + (-29) + (-21)$
= $-37 - 29 - 21 = -87$

16) $37 + 19 + (-15)$
= $37 + 19 - 15 = 56 - 15 = 41$

17) $13 + 17 + (-28)$
= $13 + 17 - 28 = 30 - 28 = 2$

18) $(-39) + (-26)$
= $-39 - 26 = -65$

19) $9 + (-14) + (-9)$
= $9 - 14 - 9 = -5 - 9 = -14$

20) $(-1) + 0 + (-7)$
= $-1 + 0 - 7 = -8$

21) $39 + (-20)$
= $39 - 20 = 19$

22) $(-17) + (-7)$
= $-17 - 7 = -24$

23) $45 + 23 - (-6)$
= $45 + 23 + 6 = 68 + 6 = 74$

24) $(-23) + (-28) - (-21)$
= $-23 - 28 + 21 = -51 + 21 = -30$

25) $(-43) + 20 + (-11)$
= $-43 + 20 - 11 = -23 - 11 = -34$

26) $47 + (-10) - (-19)$
= $47 - 10 + 19 = 37 + 19 = 56$

27) $28 + 26 + (-30)$
= $28 + 26 - 30 = 54 - 30 = 24$

28) $(-6) + (-7)$
= $-6 - 7 = -13$

29) $(-2) + (-5)$
= $-2 - 5 = -7$

30) $(-10) + 27 + (-8)$
= $-10 + 27 - 8 = 17 - 8 = 9$

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✔ Final Answers:

1) $-64$
2) $-34$
3) $-23$
4) $50$
5) $-17$
6) $12$
7) $-9$
8) $-34$
9) $22$
10) $49$
11) $14$
12) $-19$
13) $-10$
14) $-21$
15) $-87$
16) $41$
17) $2$
18) $-65$
19) $-14$
20) $-8$
21) $19$
22) $-24$
23) $74$
24) $-30$
25) $-34$
26) $56$
27) $24$
28) $-13$
29) $-7$
30) $9$

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Let me know if you'd like this formatted as a printable answer key or need explanations for any specific problem!