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I need to buy pencils for 315 students and the pencils are sold in boxes of 10. How can i use rounding to decide how many pencils to buy?
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Mar 6, 2017
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I need to buy pencils for 315 students and the pencils are sold in boxes of 10. How can i use rounding to decide how many pencils to buy?
Mathematics
middle-school
Pablo Burgos
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find the next multiple of of 10 that is 320 and then divide that by 10 to get 32.
MHP
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Mar 7, 2017
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MHP
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If every student receives 1 pencil, then:
315 ÷ 10 = 31.5
Since you can't physically give a student half a pencil, you have to round up no matter what. So 31.5 rounded up to the next whole number will be 32.
Solution: 32 boxes of pencils
Bspoel
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Mar 10, 2017
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