Number Strategies resources

Students to show how they estimate in some addition problems.

Students select the correct fraction of toys to click and drag into a suitcase.

Students use number lines to show how to solve whole number addition and subtraction problems.

Students show how they solve equal sharing problems.

Students use a number line to show how to solve whole number addition problems.

This task requires students to estimate some addition problems using any appropriate method.

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

Students perform addition and multiplication based on information given in decimal form in a table.

Students select which person has correctly applied the laws of indices to some problems, and explain their choice.

Students find the sum of a number of given decimal weights of objects or the post.

Students halve and double a range of numbers.

Students estimate a division problem, share their methods, discuss the nice numbers and factors method, and then do more problems using nice numbers and factors.

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

Students discuss making an interval estimate in multiplication problems (i.e., getting a lower and an upper limit for the actual answer using the front-end and rounding-up estimation methods). They then use this method on two problems.

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.

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

Students express proportions as percentages and calculate percentages.

Students solve problems involving money by finding the total spent and the change from a given amount.

Students select the correct fraction of toys to click and drag into a toy box.

Students select the correct fraction of fruits to click and drag into a bowl.

Students complete a number of equations adding to 36 on an addition wheel.

Students write down an explanation of how the front-end estimation strategy works in addition problems to give information on their understanding of the strategy.

Students perform decimal multiplication and division involving the cost of material, without the use of a calculator.

Students work out the smallest and largest amounts of coins and notes in a piggy bank from statements about the number and type of money.

Students discuss making an initial estimate in addition problems using the front-end method followed by compensation to get a more accurate estimate. They then use this method on two addition problems.