I Can Make a Ballpark Estimate

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Presentation transcript:

I Can Make a Ballpark Estimate You don’t want to be OUT IN LEFT FIELD! You want your answer to BE IN PLAY! Close to the correct answer.

I Can Make a Ballpark Estimate Remember When you make a Ballpark Estimate you change the numbers to close but EASIER numbers that you can easily add in your head. Which is easier to solve mentally? 30 + 50 = or 27 + 54 =

I Can Make a Ballpark Estimate 32 1, 2, 3, or 4 we round down +47 5, 6, 7, 8, or 9 we round up 30 +50

I Can Make a Ballpark Estimate Step 1: Change each number to a close but easier number. Step 2: Add the easier numbers together. Step 3: Add the original numbers. Step 4: Does my answer make sense? Compare the numbers.