Gives a reasonable estimate of the number of objects.
Words that can be used to give estimation are:
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
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.
Sample question: Which one is more than? 88 or 90?
Answer: 90 is more than 88.
Assess yourself by staged practices