Number and Algebra resources

Students estimate an addition problem, share their methods, discuss the averaging method, and then do more problems using averaging.

Students estimate a multiplication problem, share their methods, discuss the rounding method, and then do more estimation problems using rounding.

Students estimate a multiplication problem, share their methods, discuss the front-end method, and then do more problems using front-end.

Students estimate an addition problem, share their methods, discuss the front-end method and then do more problems using front-end.

In this task students decide which people are estimating and which are not, and explain their reasoning.

Students estimate an addition problem, share their methods, discuss grouping nice numbers, and then do a problem using this method, then design a question showing how it uses the method.

In this practical task, students are to estimate the cost of meals ordered from a menu. The teacher reads out the meals and students show the steps in their estimations.

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 show how they would carry out estimation of multiplication tasks.

Students answer questions involving finding fractions in story problems about marbles and write their answer in its simplest form.

Students decide if a percentage statement is correct and explain their answer.

Students calculate the repair charges for two different washing machine repair companies, and compare and explain their results.

Students solve mathematical problems involving distance, and identify parts of an algebraic expression.

Students calculate the cost of hiring a search and rescue helicopter and compare this cost with another helicopter company's charges.

Student solve addition problems where the missing value is located in different positions. This may mean that students transform the problem into a subtraction one. Students reflect on the easiest and hardest problems, and explain their choice.

For this NEMP task students performs a series of increasingly difficult addition problems presented in vertical algorithms.

Students find missing numbers to complete addition, subtraction and multiplication number patterns.

Students order three-digit numbers and identify even numbers.

Students calculate the percentage by which clothing prices have been reduced.

Students select from a set of numbers to show the closest number to each population fact.

Students solve number problems involving the addition and subtraction of fractions.

Students identify and give rules for when numbers are divisible by three or by nine.

Students select the answer for two subtraction problems, select which one they thought was easier, and explain their reasons for this.

Students calculate the number of rocks in a wall set up as an array.