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