46.78-18.55 and estimate each sum or difference = 28.23
The sum is 2.05 and you don;t need to estimate such a simple sum!
In arithmetic, estimate usually means rounding the numbers so they're easier to manipulate. Example: Estimate the sum of 432 and 267. You can round them to 430 and 270 and estimate the sum as 700. You could also round them to 400 and 300 and estimate the same total. To estimate a difference, just subtract them. 430 minus 270 is 160. The actual sum is 699 and the actual difference is 165, so your estimates came pretty close.
No difference. Some companies use each word interchangeably.
The answer is -30.
I ask this QU. so it is stupid i have to answer it :(
Because you will see that the sum or difference is close to your estimate. If it isn't that close, round the number you're estimating to the nearest compatible number and find the sum or difference Sum = Addition Difference = Subtraction Product = Multiplication Quotient = Division Does this answer help?
Estimate each difference means to estimate the numbers that they give you estimate means round to the nearest 10 like if 24 and you have to round it it will be 20 if the number is 25 which is in the middle than it will be the number upper which is 30
First you round 312 to 310 and then you round 287.6 to 290, which equals, 20. ;)
You cannot. The sum and difference cannot be the same for any pair of non-zero numbers.
use compatible numbers to estimate each difference 84-36
106 + 091 = 197 100 + 100 = 200 Answer: 3