Math: Addition And Subtraction

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Math: Addition and Subtraction book is excellent for adults who need to learn math from scratch. It starts with very simple 1 + 1 addition and moves on to math equations like if x + 5 = 15, what is x? The book is easy to follow and makes teaching an adult learner easy and simple.

At the completion of this book the learner will be able to: * determine number place values * round numbers * add single digit numbers * add double digit numbers without carry-over * add double digit numbers with carry-over * add three and four digit numbers with carry-over * subtract single digit numbers * subtract double digit numbers without borrowing * subtract double digit numbers with borrowing * subtract three digit numbers with borrowing * subtract numbers with zeros * basic addition and subtraction equations * using rounding to estimate answers