When is not solving the expression the correct answer? When you are checking the understanding of a math concept that is not number dependent. The real question being asked here is to look at the initial number, fraction, mixed number, or decimal in the expression and determine if the solution would be greater than or less than 999,999,999. No computation needed!

Common Core

5.NF.B.5.a 5.NF.B.5.b MP4 MP8