Estimate quotients
key notes:
A compatible number is a nearby number that is easy to divide.
Learn with an example
🔔 Estimate.
Which sign makes the statement true?
2,10,193 _____ 8,35,834 ÷ 5
< / >
Use a compatible number.
210,193 ______ 835,834 ÷ 5
210,193 ______ 850,000 ÷ 5
Now divide:
210,193 ______ 850,000 ÷ 5
210,193 ______ 170,000
210,193 is greater than 170,000.
The > sign makes the statement true.
🔔 EstiEstimate.
Which sign makes the statement true?
5,421 ÷ 67 ____ 41
< / >
Use a compatible number.
5,421 ÷ 67 _____ 41
5,600 ÷ 70 _____ 41
Now divide:
5,600 ÷ 70 ____ 41
80 ____ 41
80 is greater than 41.
The > sign makes the statement true.
🔔 Estimate.
Which sign makes the statement true?
441,976 ÷ 7 ? 35,002
- >
- <
Use a compatible number.
441,976 ÷ 7 35,002
420,000 ÷ 7 35,002
Now divide:
420,000 ÷ 7 35,002
60,000 35,002
60,000 is greater than 35,002. The > sign makes the statement true.
let’s practice :
