Calvin evaluated using the steps below.Step 1: Step 2: Step 3: Step 4: Which describes Calvin’s error?



Vassil rounded to the nearest half to estimate the product of and . How do the estimated and actual products compare?(Hint: use 18 for the denominator when comparing.)





Seven students cut inches of thread from a spool for a school project. What number represents the change in the amount of the thread on the spool?





Which is the best estimate of ?

Javier rounded to the nearest half to estimate the product of and . How do the estimate and the actual product compare?

Ivan and Polina have each drawn a conclusion about multiplying negative fractions. Ivan: The product of an even number of negative fractions is always positive. Polina: The product of an odd number of negative fractions is always negative. Whose conclusion is correct?
Which expression could be used to determine the product of –4 and ?





A leaky pool loses inches of water each day. Jermaine and Mildred are asked to determine the change in the amount of water in the pool over 5 days. Jermaine’s SolutionMildred’s SolutionWhich describes the reasoning used to determine whose solution is correct?



Which is the best estimate of ?

Which shows how the distributive property can be used to evaluate ?





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