Additive thinking resources

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

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.

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

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

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

This task requires students to show how to calculate multiplication problems with multi-digit numbers.

Students estimate a subtraction problem, share their methods, discuss the rounding one number method, and then do more problems by rounding one number.

Students use addition and subtraction to work out costs related to the purchase of grocery items.

Students work out the number of covered counters on a 10 x 10 array.

Students complete subtraction equations by selecting from a range of numbers.

Students give answers to addition and subtraction basic facts problems.

Students calculate how price changes affect a purchase.

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

Students solve different forms of subtraction equations.

Students solve different forms of addition equations.