Estimation resources

This practical task involves students making best estimates of sets of items and clearly demonstrating their method(s) of estimation.

Students estimate and explain how they estimated their answer for two number problems: one involving multiplication; and the other division.

Students use rounding to estimate totals then discuss this as a method of estimation.

Students use a scale map to estimate the area of Antarctica and explain their method.

Students explain errors in calculations that include all operations, decimal values, and percentages.

Students calculate an exact square root and estimate approximate square roots by finding the length of the square flower bed of a given area, and give an explanation for their answers.