Number - Page 4 - Minimally Different - Free Printable

Let’s solve each problem one by one. Remember the rules for multiplying negative numbers:

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

Also, when you multiply a number by a fraction, just multiply the whole number by the numerator and keep the denominator — then simplify if needed.

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1. 3 × 4 =
3 times 4 is 12 → 12

2. –3 × 4 =
Negative times positive = negative → 3×4=12 → so –12

3. 4 × –3 =
Positive times negative = negative → 4×3=12 → so –12

4. –4 × –3 =
Negative times negative = positive → 4×3=12 → so 12

5. –40 × 3 =
Negative × positive = negative → 40×3=120 → so –120

6. –80 × 3 =
Same rule → 80×3=240 → so –240

7. –3 × 80 =
Negative × positive = negative → 3×80=240 → so –240

8. –6 × 80 =
6×80=480 → negative result → –480

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Now let’s do the ones with fractions (problems 13–15):

13. –6 × –½ =
Negative × negative = positive
6 × ½ = 3 → so 3

14. –12 × –½ =
Negative × negative = positive
12 × ½ = 6 → so 6

15. –12 × –⅓ =
Negative × negative = positive
12 × ⅓ = 4 → so 4

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Back to regular multiplication:

16. –3 × 3 =
Negative × positive = negative → 3×3=9 → so –9

17. –3 × –3 =
Negative × negative = positive → 3×3=9 → so 9

18. –4 × –4 =
Negative × negative = positive → 4×4=16 → so 16

19. –5 × –5 =
Same → 5×5=25 → so 25

20. –10 × –10 =
Negative × negative = positive → 10×10=100 → so 100

21. –10 × –10 × 2 =
First: –10 × –10 = 100 (positive)
Then: 100 × 2 = 200 → so 200

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Final Answer:
1. 12
2. -12
3. -12
4. 12
5. -120
6. -240
7. -240
8. -480
13. 3
14. 6
15. 4
16. -9
17. 9
18. 16
19. 25
20. 100
21. 200