This resource supports a concrete-pictorial-abstract approach to teaching subtraction crossing 10. It also includes reasoning questions and answers.
It is aligned with the Common Core Standards, UK National Curriculum and Australian curriculum.
UK Curriculum links:
-Represent and use number bonds and related subtraction facts within 20 -Read, write and interpret mathematical statements involving addition (+), subtraction (-) and equals (=) signs.
-Add and subtract one-digit and two-digit numbers to 20, including zero. -
Solve one-step problems that involve addition and subtraction, using concrete objects and pictorial representations, and missing number problems such as 7= ꙱–9
Represent and solve simple addition and subtraction problems using a range of strategies including counting on, partitioning and rearranging parts (ACMNA015 - Scootle )
I hope you find this resource useful :)