Estimating Whole Number Quotients | Baamboozle - Baamboozle

English 14 Public

Play this game to practice estimating with up to four digit dividends by two digit divisors.

Study Slideshow

Estimate: 287 / 42

280 / 40 = 7

Estimate: 320 / 11

320 / 10 = 32

Estimate: 554 / 62

540 / 60 = 9

Estimate: 2,491 / 48

2,500 / 50 = 50

Estimate: 2,740 / 67

2,800 / 70 = 40

Estimate: 4,322 / 81

4,000 / 80 = 50

Estimate: 6,395 / 84

6,400 / 80 = 80

About how much will each cap cost?

270 / 30 = 9 dollars for each cap

Explain.

15,000 and 50 are compatible because 15 / 5 = 3, so they activated about 300 phones per minute.

Which is the best estimate?

4,000 / 50 = 80 eggs

Estimate: 3,514 / 58

3,600 / 60 = 60

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.

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.

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!!!