Complete the following exercise:
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Complete the following exercise:
Let's remember the rule:
Therefore, the sign of the exercise result will be positive:
18
What will be the sign of the result of the next exercise?
\( (-2)\cdot(-4)= \)
This is called the commutative property of multiplication! It means you can multiply numbers in any order and get the same answer. Think of it as 6 groups of 3 or 3 groups of 6 - both equal 18.
Try skip counting by 6s: 6, 12, 18, 24, 30... Or notice that 6 × any number is the same as doubling the 3 times table! For example: 3 × 3 = 9, so 6 × 3 = 18.
The dot (·) is just another way to write multiplication! It means the same thing as × or *. So = 6 × 3 = 18.
Use division to check! If 6 × 3 = 18, then 18 ÷ 6 should equal 3, and 18 ÷ 3 should equal 6. You can also add 6 three times: 6 + 6 + 6 = 18.
Think of it this way: when you have positive groups of positive things, you always get more positive things! 6 positive groups of 3 positive items gives you 18 positive items total.
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