Here are the solutions to the integer addition and subtraction problems. I have worked through each one step-by-step to ensure accuracy.
1) $20 - (-14) - 1$
* Subtracting a negative is like adding: $20 + 14 = 34$
* Then subtract 1: $34 - 1 = 33$
*
Answer: 33
2) $0 - (-16) + (-3)$
* Subtracting a negative becomes addition: $0 + 16 = 16$
* Adding a negative is subtraction: $16 + (-3) = 16 - 3 = 13$
*
Answer: 13
3) $-8 + (-4) + 20$
* Add the negatives first: $-8 + (-4) = -12$
* Then add 20: $-12 + 20 = 8$
*
Answer: 8
4) $15 + (-11) - (-5)$
* First part: $15 + (-11) = 15 - 11 = 4$
* Second part (subtracting negative): $4 - (-5) = 4 + 5 = 9$
*
Answer: 9
5) $11 - (-7) + 2$
* Subtracting negative: $11 + 7 = 18$
* Add 2: $18 + 2 = 20$
*
Answer: 20
6) $-7 - 1 - 10$
* Start with -7, subtract 1: $-7 - 1 = -8$
* Subtract 10 more: $-8 - 10 = -18$
*
Answer: -18
7) $17 - 8 + (-18)$
* First part: $17 - 8 = 9$
* Add negative: $9 + (-18) = 9 - 18 = -9$
*
Answer: -9
8) $-14 - 8 + (-1)$
* First part: $-14 - 8 = -22$
* Add negative: $-22 + (-1) = -22 - 1 = -23$
*
Answer: -23
9) $-16 + (-7) + 15$
* Add negatives: $-16 + (-7) = -23$
* Add 15: $-23 + 15 = -8$
*
Answer: -8
10) $20 + 11 + (-8)$
* Add positives: $20 + 11 = 31$
* Add negative: $31 + (-8) = 31 - 8 = 23$
*
Answer: 23
11) $-8 + 11 - (-16)$
* First part: $-8 + 11 = 3$
* Subtract negative: $3 - (-16) = 3 + 16 = 19$
*
Answer: 19
12) $-11 - (-2) + 7$
* Subtract negative: $-11 + 2 = -9$
* Add 7: $-9 + 7 = -2$
*
Answer: -2
13) $1 - (-18) - (-9)$
* First subtract negative: $1 + 18 = 19$
* Second subtract negative: $19 - (-9) = 19 + 9 = 28$
*
Answer: 28
14) $-12 - 15 - 16$
* First part: $-12 - 15 = -27$
* Subtract 16 more: $-27 - 16 = -43$
*
Answer: -43
15) $-17 - (-20) + 4$
* Subtract negative: $-17 + 20 = 3$
* Add 4: $3 + 4 = 7$
*
Answer: 7
16) $11 - 15 + (-3)$
* First part: $11 - 15 = -4$
* Add negative: $-4 + (-3) = -4 - 3 = -7$
*
Answer: -7
17) $18 + (-13) + (-14)$
* First part: $18 + (-13) = 18 - 13 = 5$
* Add negative: $5 + (-14) = 5 - 14 = -9$
*
Answer: -9
18) $-20 - 4 + 0$
* First part: $-20 - 4 = -24$
* Add 0: $-24 + 0 = -24$
*
Answer: -24
19) $11 + (-8) + 13$
* First part: $11 + (-8) = 11 - 8 = 3$
* Add 13: $3 + 13 = 16$
*
Answer: 16
20) $6 + 1 - (-3)$
* First part: $6 + 1 = 7$
* Subtract negative: $7 - (-3) = 7 + 3 = 10$
*
Answer: 10
Final Answer:
1) 33
2) 13
3) 8
4) 9
5) 20
6) -18
7) -9
8) -23
9) -8
10) 23
11) 19
12) -2
13) 28
14) -43
15) 7
16) -7
17) -9
18) -24
19) 16
20) 10
Parent Tip: Review the logic above to help your child master the concept of add and subtract integers worksheet pdf.
