Multiplying Positive by Negative Integers from -9 to 9 (100 ... - Free Printable

You're working on a worksheet titled “Multiplying Integers (A)”. The goal is to calculate the product (result) of each multiplication problem involving positive and negative integers.

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## ✔ Key Rule for Multiplying Integers:

- Positive × Positive = Positive
- Negative × Negative = Positive
- Positive × Negative = Negative
- Negative × Positive = Negative

In short:
> Same signs → Positive result
> Different signs → Negative result

Then, multiply the absolute values (ignore the signs, just multiply the numbers).

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## 📝 Let’s solve the worksheet row by row:

Row 1:

- `5 × (–3)` = –15
- `2 × (–9)` = –18
- `3 × (–6)` = –18
- `1 × (–8)` = –8

Row 2:

- `7 × (–8)` = –56
- `4 × (–3)` = –12
- `1 × (–3)` = –3
- `8 × (–1)` = –8

Row 3:

- `1 × (–1)` = –1
- `3 × (–8)` = –24
- `9 × (–8)` = –72
- `2 × (–8)` = –16

Row 4:

- `5 × (–8)` = –40
- `5 × (–7)` = –35
- `6 × (–7)` = –42
- `3 × (–1)` = –3

Row 5:

- `7 × (–7)` = –49
- `5 × (–9)` = –45
- `4 × (–2)` = –8
- `4 × (–9)` = –36

Row 6:

- `1 × (–2)` = –2
- `6 × (–6)` = –36
- `2 × (–2)` = –4
- `5 × (–6)` = –30

Row 7:

- `9 × (–7)` = –63
- `9 × (–4)` = –36
- `4 × (–7)` = –28
- `7 × (–6)` = –42

Row 8:

- `8 × (–5)` = –40
- `9 × (–5)` = –45
- `8 × (–7)` = –56
- `2 × (–2)` = –4

Row 9:

- `3 × (–4)` = –12
- `3 × (–9)` = –27
- `6 × (–4)` = –24
- `4 × (–6)` = –24

Row 10:

- `5 × (–1)` = –5
- `6 × (–3)` = –18
- `1 × (–6)` = –6
- `4 × (–3)` = –12

Row 11:

- `3 × (–3)` = –9
- `9 × (–6)` = –54
- `6 × (–1)` = –6
- `2 × (–5)` = –10

Row 12:

- `5 × (–5)` = –25
- `7 × (–2)` = –14
- `3 × (–2)` = –6
- `9 × (–8)` = –72

Row 13:

- `9 × (–9)` = –81
- `2 × (–5)` = –10
- `4 × (–4)` = –16
- `6 × (–9)` = –54

Row 14:

- `7 × (–3)` = –21
- `5 × (–4)` = –20
- `7 × (–1)` = –7
- `6 × (–4)` = –24

Row 15:

- `2 × (–6)` = –12
- `2 × (–3)` = –6
- `5 × (–2)` = –10
- `8 × (–4)` = –32

Row 16:

- `1 × (–4)` = –4
- `4 × (–5)` = –20
- `3 × (–5)` = –15
- `4 × (–5)` = –20

Row 17:

- `8 × (–9)` = –72
- `9 × (–1)` = –9
- `8 × (–4)` = –32
- `6 × (–5)` = –30

Row 18:

- `2 × (–1)` = –2
- `4 × (–6)` = –24
- `8 × (–8)` = –64
- `7 × (–3)` = –21

Row 19:

- `8 × (–6)` = –48
- `4 × (–8)` = –32
- `7 × (–5)` = –35
- `9 × (–7)` = –63

Row 20:

- `8 × (–2)` = –16
- `7 × (–6)` = –42
- `8 × (–3)` = –24
- `4 × (–8)` = –32

Row 21:

- `1 × (–9)` = –9
- `6 × (–5)` = –30
- `6 × (–8)` = –48
- `4 × (–4)` = –16

Row 22:

- `2 × (–4)` = –8
- `1 × (–5)` = –5
- `3 × (–7)` = –21
- `1 × (–6)` = –6

Row 23:

- `4 × (–1)` = –4
- `9 × (–2)` = –18
- `6 × (–9)` = –54
- `1 × (–5)` = –5

Row 24:

- `2 × (–7)` = –14
- `9 × (–3)` = –27
- `6 × (–2)` = –12
- `3 × (–9)` = –27

Row 25:

- `1 × (–7)` = –7
- `7 × (–4)` = –28
- `7 × (–9)` = –63
- `5 × (–4)` = –20

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## ✔ Final Answer Sheet (All Products):

```
–15 –18 –18 –8
–56 –12 –3 –8
–1 –24 –72 –16
–40 –35 –42 –3
–49 –45 –8 –36
–2 –36 –4 –30
–63 –36 –28 –42
–40 –45 –56 –4
–12 –27 –24 –24
–5 –18 –6 –12
–9 –54 –6 –10
–25 –14 –6 –72
–81 –10 –16 –54
–21 –20 –7 –24
–12 –6 –10 –32
–4 –20 –15 –20
–72 –9 –32 –30
–2 –24 –64 –21
–48 –32 –35 –63
–16 –42 –24 –32
–9 –30 –48 –16
–8 –5 –21 –6
–4 –18 –54 –5
–14 –27 –12 –27
–7 –28 –63 –20
```

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## 🎯 Tips for Checking Your Work:

- Double-check sign rules: same signs = positive, different = negative.
- Use a calculator if unsure — but try to do it mentally first to build fluency!
- Look for patterns — e.g., multiplying by 1 or –1 just changes the sign.

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Let me know if you’d like a printable version or want to practice more problems! 😊