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Opens on Chapter 1’s example: the full list of methods, in the order the book teaches them.
Type a word, or press Search to see every method.
From the book, Chapter 1. Max’s worksheet asked for 46 + 37 “two ways”. The column method and the jumps on a number line give the same answer for the same reason; Chapter 1 shows both, and this list sends you to the chapter for whatever is on tonight’s sheet.
Names and usual grades follow the US Common Core standards and England’s national curriculum; schools vary, and your child’s teacher is the authority on their class. Everything stays in your browser: no sign-up, nothing stored or sent.