Use compatible numbers to estimate. 212 + 347 = 83 + 34 =
200 + 350= 80 + 30 =
May you please help me find 23 times 34
To estimate the sum of 212 + 347, we can use compatible numbers. Compatible numbers are ones that are close to the original numbers and are easy to work with mentally.
Step 1: Round the numbers to the nearest tens, hundreds, or thousands that are easy to work with. In this case, we can round 212 to 200 and 347 to 350.
Step 2: Add the rounded numbers. 200 + 350 = 550.
Therefore, 212 + 347 is approximately equal to 550.
To estimate the sum of 83 + 34, we can use the same process.
Step 1: Round the numbers to the nearest tens. In this case, 83 can be rounded to 80 and 34 can be rounded to 30.
Step 2: Add the rounded numbers. 80 + 30 = 110.
Therefore, 83 + 34 is approximately equal to 110.
So, the estimated sum of 212 + 347 is 550, and the estimated sum of 83 + 34 is 110.