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I would use 47 and 21. It is easy enough to add them without having to waste time with estimates.

I would use 47 and 21. It is easy enough to add them without having to waste time with estimates.

I would use 47 and 21. It is easy enough to add them without having to waste time with estimates.

I would use 47 and 21. It is easy enough to add them without having to waste time with estimates.

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I would use 47 and 21. It is easy enough to add them without having to waste time with estimates.

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50 And 20

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2

Q: What numbers would you use to estimate the sum 47 and 21?

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I would use 40 for the 38 and 50 for the 51. 90 would be my estimate.

If I had to, I would use 20 and 70.

5.6261

3.8667

11

Related questions

17 and 4: sum is 21.

I would use 40 for the 38 and 50 for the 51. 90 would be my estimate.

you can use whole numbers

You could use 250 and 750.

If I had to, I would use 20 and 70.

When working with very large numbers or very small numbers and they would use a system of numeracy known as scientific notation.

20 and 80 based on conventional rules. 20 and 70 to be more accurate.

5678 + 8765 = 14443 would yield the largest possible sum.

5.6261

50.0000.000

Hm well you can use whole numbers. Now my boy do you get it? Get that brain working!

the answer is yes because you can estimate any numbers