Addition and subtraction with regrouping using different strategies to solve.

The present paper describes the success, the methods (mental, informal written, standard algorithm) and the strategies of informal written arithmetic to be observed when 300 elementary students worked ...

Quiz: Adding up to 4-digit numbers together Complete this quiz to understand how to add up to 4-digit numbers together. Then put your knowledge to the test.

SUBJECTS: Maths YEARS: 3–4, 5–6 Miss White teaches you how to complete formal addition problems without regrouping. She demonstrates how to set up and solve the addition questions correctly ...