Answer:
To multiply 6 x 298 using friendly numbers, we can break down 298 into more manageable numbers. For example, we can think of 298 as 300 - 2.
Using friendly numbers:
6 x (300 - 2) = (6 x 300) - (6 x 2) = 1800 - 12 = 1788
Now, let's multiply 6 x 298 using properties and mental math:
We can round 298 to 300, which is a friendly number. Multiplying 6 by 300 gives us 1800.
Since we rounded up to 300, we need to subtract the difference from the original number. The difference is 300 - 298 = 2.
To find the final answer, we subtract 6 x 2 from 1800:
1800 - (6 x 2) = 1800 - 12 = 1788
Both methods give us the same answer, which is 1788. The friendly numbers method breaks down the calculation into more manageable steps by using numbers that are easy to work with mentally. This can make the multiplication process quicker and easier to understand.
On the other hand, using properties and mental math allows us to simplify the calculation by rounding to a friendly number and adjusting the result accordingly. This method is useful when we want to make mental calculations or estimate the answer quickly without using an exact multiplication algorithm.
Both methods have their advantages, and the choice between them depends on the situation and personal preference.
Explanation: