Additive thinking resources

Students calculate the perimeter of a range of 2-dimensional shapes.

Students calculate the length of a builder's string line.

Students answer four questions about flight times on a flight schedule.

Students record a movie's start and finish times in 24 hour time, and perform time calculations using them.

This practical task requires students to collect data about gender and left- or right- handedness from a group or class, present their data in a 2 × 2 array, and make a statement based on their findings.

Students conduct a practical, statistical investigation. They decide on a Topic and question, conduct the survey, complete the tally chart, construct a bar graph of the major ideas and make statements about the results.

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

Students work out how long a race took given the starting and finishing time. Answers are split into hours, minutes and seconds.

Students work out time calculations involving 24 hour time.

Students answer questions about international time differences.

Students to show how they estimate in some addition problems.

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

Students answer questions about international time differences.

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

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

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 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 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.

Students use all four operations to perform calculations using decimal values.

For this NEMP task students perform a range of addition and subtraction calculations using whole numbers and decimals.

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

Students calculate addition and subtraction problems, written in decimal form, for city populations.

Students work out the difference in distances of throws and jumps of various athletic events.

Students demonstrate their understanding of the order of operations and placing brackets.