ACARA AC9M1N04, Number sentences to solve problems
Year 1 · Number
Solve one- and two-digit adding and subtracting problems by writing number sentences and using part-part-whole reasoning.
Below are free printable maths worksheets that support AC9M1N04. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.
Teaching guide
Solve one- and two-digit adding and subtracting problems by writing number sentences and using part-part-whole reasoning.
Start by counting on from the larger number, then move to partitioning into tens and ones and adding each part, and finally column addition with regrouping.
Generated and checked in code, so it is correct.
Adding the tens and ones columns without carrying the regrouped ten, and always counting on from the first number rather than the larger.
Addition worksheets
All addition worksheets →Subtraction worksheets
All subtraction worksheets →Word Problems worksheets
All word problems worksheets →Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.