A working mat to explore trading/regrouping when subtracting.
Students use the mat to create two-digit minuends with MAB Blocks and then trade tens for ones as necessary.
This mat is perfect for reinforcing, in a concrete way, the strategy of regrouping when subtracting. It is an ideal resource to use when working on mental computation in preparation for learning to write the vertical algorithm.
Print and laminate the mats for students to use repeatedly. Alternatively, provide each student with a black-and-white version to paste into their workbooks.
National Curriculum Curriculum alignment
- Key Stage 2 (KS2) - Lower
Key Stage 2 (KS2) - Lower covers students in Year 3 and Year 4.
The principal focus of mathematics teaching in lower key stage 2 is to ensure that pupils become increasingly fluent with whole numbers and the four operations, including number facts and the concept of place value. This should ensure that pupils dev...
- Addition and subtraction
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