asked 20.6k views
1 vote
How can estamating products help you to place the decimal correctly

asked
User JaydeepW
by
8.9k points

2 Answers

5 votes
If we have the problem: 3 times 1.2, and if we estimate the product, we get (3 times 1) 3. If you really do multiply it out, then you get 3.6. But what if you didn't know that, and you put 0.36. 0.36 is say off from our estimated product: 3. Therefore, we know that 0.36 is wrong, and 3.6 is correct (or reasonably correct), because 3.6 is close of 3. I hope this helps! :D
answered
User Kc Ochibili
by
8.0k points
0 votes
it is easier because you can see if your decimal answer is closer to the actual answer
answered
User Arun Aravind
by
8.6k points
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