Answer:

1.Round of the numbers to the highest place value.

for example:

434 = 400

5658 = 6000

8374 = 8000

361 = 400

2. Find the qoutient. Use the cancellation method.

for example:

3000÷10, cancel the last 0 digit of each number.

so we have 300÷1 is equal to 300.

HERE IS THE EXAMPLE ON HOW TO ESTIMATE THE QOUTIENT.

A farmer has 31,205 pineapples to pack equally in 48 boxes. about how many pineapple will be in each box?

31,205÷48=650 r.5, round off the divedend and the divisor to their highest place value.

so 31,205 will become 30,000 and 48 will become 50.

30,000÷48= N, now apply the rules of cancellation for dividng rounded numbers.

30,000 will become 3,000 cancelled 0, 50 will become 5 cancelled 0.

ANSWER:

3,000÷5=600