Teacher is buying pencils for 315 students. The pencils are sold in boxes of tens. How can she use rounding to decide how many pencils to buy? How do I get the answer?
There are 315 students ,
then the teachers needed 315 pencils.
Since the pencils comes in 10- pecils cases, then she can buy 32 cases...
(The entire section contains 67 words.)
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She should round up the # of students to 320 in order to have enough for everyone.10 pencils times 32 boxes =320 pencils...