True or False: It is useless to find the exact answer to a division problem and then round the quotient.
True! Estimating is supposed to provide a quick way to find a close answer. If you do the long division and then round the answer, that defeats the purpose!!!
Estimate: 2,740 / 67
2,800 / 70 = 40
Which is the best estimate?
4,000 / 50 = 80 eggs
Estimate: 320 / 11
320 / 10 = 32
Estimate: 554 / 62
540 / 60 = 9
Estimate: 4,322 / 81
4,000 / 80 = 50
Shana wants to buy a PS5 Digital Edition. It costs $399.99. She will save money for 13 weeks. Which is a better way for her to estimate how much she will need to save each week: 360 / 12 = 30 or 480 / 12 = 40? Explain.
480 / 12 = 40. If she rounds the price down, then she will not have enough money saved at the end of 13 weeks.
Estimate: 287 / 42
280 / 40 = 7
Estimate: 3,514 / 58
3,600 / 60 = 60
Explain.
15,000 and 50 are compatible because 15 / 5 = 3, so they activated about 300 phones per minute.
About how much will each cap cost?
270 / 30 = 9 dollars for each cap
Answer and explain.
3,000 / 60 is the better estimate. By rounding down the number of bottles and rounding up the amount needed by department, they won't have a shortage.
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