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 ...

Korean children's ability to solve addition problems with sums of 10, single-digit addition problems with sums between 10 and 18, and single-digit subtraction problems with minuends between 10 and 18 ...

Test out your knowledge of adding 3-digit and 1-digit numbers together with this quiz, then read on to complete the page.

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 ...