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# Number that close to that the given numbers that make estimation or mental calculation easier?

Updated: 9/16/2023

Carlyrd

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Q: Number that close to that the given numbers that make estimation or mental calculation easier?
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### Numbers that are close to the given numbers that make estimation or mental calculation easier?

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### What are Numbers that are close to the given numbers that make estimation or mental calculation easier?

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### What are numbers that are close to the given numbers to make estimation easier?

15 ,67, and 84 are numbers that are close to the given numbers to make estimation easier.

It is easier to simply add two one-digit numbers than to mess about with estimation!

19

### How many 4 digit number combinations are possible by using the same 6 numbers?

6 * 5 * 4 * 3 I'm sure you can calculate the answer from here. (that assumes you can't use an already used number again, if reuse is allowed the calculation is even easier)

### Can text entries can be used in calculation using Excel?

Not in the sense that you can type the word of a number and/or operation to do a calculation, like having: =Five multiplied by seven =Ten + four =8 minus 2 However some text functions can be used to generate numbers, like finding the length of a piece of text and using that number in a calculation. You can also give cells actual names and then use those names in calculations, which can be easier than remembering cell addresses. So you could have a cell named Total and then do a calculation like this, using the word Total instead of the actual cell reference: =Total * 10%

### What does the word front-end estimation mean?

Front-end estimation means that you estimate from the front of the number. say you're too lazy to work out 183 + 294. 183 becomes 180 and 294 becomes 290. now the problem is 180 + 290. see? much easier!

### Why are commas used in large numbers?

They're simply used for clarity - to make the number easier to read.