Let's solve each of these addition problems step by step. We are adding integers, including positive and negative numbers. Remember:
- Adding two positive numbers: add their absolute values.
- Adding two negative numbers: add their absolute values and keep the negative sign.
- Adding a positive and a negative number: subtract the smaller absolute value from the larger and use the sign of the number with the larger absolute value.
We'll go through each problem one at a time.
---
1) $(+5) + (+3) + (+4) + (+4)$
All are positive:
$5 + 3 + 4 + 4 = 16$
✔ Answer: 16
---
2) $(-3) + (+4) + (+7) + (+7)$
Add positives first: $4 + 7 + 7 = 18$
Then add $-3$: $18 - 3 = 15$
✔ Answer: 15
---
3) $(-5) + (-6) + (-2) + (5)$
Negatives: $-5 -6 -2 = -13$
Positive: $+5$
Now: $-13 + 5 = -8$
✔ Answer: -8
---
4) $(0) + (+2) + (-1) + (9)$
$0 + 2 = 2$
$2 - 1 = 1$
$1 + 9 = 10$
✔ Answer: 10
---
5) $(-3) + (+7) + (+9) + (+6)$
Positives: $7 + 9 + 6 = 22$
Then: $-3 + 22 = 19$
✔ Answer: 19
---
6) $(-8) + (+2) + (+7) + (+5)$
Positives: $2 + 7 + 5 = 14$
Then: $-8 + 14 = 6$
✔ Answer: 6
---
7) $(-4) + (+5) + (+4) + (+8)$
Positives: $5 + 4 + 8 = 17$
Then: $-4 + 17 = 13$
✔ Answer: 13
---
8) $(0) + (+2) + (+8) + (+0)$
$0 + 2 + 8 + 0 = 10$
✔ Answer: 10
---
9) $(+7) + (-9) + (0) + (4)$
$7 - 9 = -2$
$-2 + 0 = -2$
$-2 + 4 = 2$
✔ Answer: 2
---
10) $(-4) + (+6) + (+3) + (+9)$
Positives: $6 + 3 + 9 = 18$
Then: $-4 + 18 = 14$
✔ Answer: 14
---
11) $(+6) + (+4) + (+1) + (+0)$
$6 + 4 + 1 + 0 = 11$
✔ Answer: 11
---
12) $(-9) + (+7) + (+2) + (+3)$
Positives: $7 + 2 + 3 = 12$
Then: $-9 + 12 = 3$
✔ Answer: 3
---
13) $(-2) + (-1) + (0) + (-6)$
Negatives: $-2 -1 -6 = -9$
$0$ doesn't change it
✔ Answer: -9
---
14) $(+3) + (+6) + (+8) + (+2)$
$3 + 6 + 8 + 2 = 19$
✔ Answer: 19
---
15) $(0) + (+8) + (+9) + (+7)$
$0 + 8 + 9 + 7 = 24$
✔ Answer: 24
---
16) $(+9) + (-7) + (-5) + (0)$
Start: $9 - 7 = 2$
$2 - 5 = -3$
$-3 + 0 = -3$
✔ Answer: -3
---
17) $(+1) + (-5) + (+5) + (+8)$
$1 - 5 = -4$
$-4 + 5 = 1$
$1 + 8 = 9$
✔ Answer: 9
---
18) $(-6) + (+5) + (-1) + (-1)$
Negatives: $-6 -1 -1 = -8$
Positives: $+5$
Then: $-8 + 5 = -3$
✔ Answer: -3
---
19) $(+6) + (+3) + (-5) + (-3)$
Positives: $6 + 3 = 9$
Negatives: $-5 -3 = -8$
Then: $9 - 8 = 1$
✔ Answer: 1
---
20) $(-8) + (-8) + (+3) + (+6)$
Negatives: $-8 -8 = -16$
Positives: $3 + 6 = 9$
Then: $-16 + 9 = -7$
✔ Answer: -7
---
✔ Final Answers:
1) 16
2) 15
3) -8
4) 10
5) 19
6) 6
7) 13
8) 10
9) 2
10) 14
11) 11
12) 3
13) -9
14) 19
15) 24
16) -3
17) 9
18) -3
19) 1
20) -7
Let me know if you'd like this in a printable format or need explanations for any specific problem!
Parent Tip: Review the logic above to help your child master the concept of integers addition and subtraction worksheet.
