Quick Notes

Gives a reasonable estimate of the number of objects.

Words that can be used to give estimation are:

1. Less than
2. More than

LESS THAN

Question 1

Sample question: The number of marbles in a box is 100 marbles that fill the entire box. Estimate the number of marbles for half of the box.

Answer: The estimated number of marbles is less than 100 marbles for half the box.

Question 2

Sample question: Which one is less than? 38 or 45?

Answer: 38 is less than 45

MORE THAN

Question 1

Sample question: Half of a pond has 100 fish. Estimate total number of fish for the whole pond.

Answer: The estimated for the total number of fish for the whole pond is more than 100 fish.

Question 2

Sample question: Which one is more than? 88 or 90?

Answer: 90 is more than 88.