Worked examples
Two examples
Example 1
(−6) × 7 =
- Different signs: the answer is negative.
- 6 × 7 = 42.
Answer: −42
Example 2
(−8) × (−5) =
- Same signs: the answer is positive.
- 8 × 5 = 40.
Answer: 40
Where this is taught: Signed Numbers, Part 10: multiplying and dividing
The drill
Ten problems
How many:
Type each answer, then press Check my answers at the bottom. For a minus sign, the hyphen key (-) is fine.Write each answer on the line. The answer key, with the reasoning, is on the last page.