Multiplication: Part one -- Using a reference number -- Multiplying numbers above and below the reference number -- Checking answers: Part one -- Multiplication: Part two -- Multiplying decimals --Multiplying using two reference numbers -- Addition -- Subtraction -- Squaring numbers -- Short division -- Long division by factors -- Standard long division -- Direct division -- Division by addition -- Checking answers: Part two -- Estimating square roots -- Calculating square roots -- Fun shortcuts -- Adding and subtracting fractions -- Multiplying and dividing fractions -- Direct Multiplication -- Estimating answers -- Using what you have learned -- Afterword -- Appendix A. Frequently asked questions -- Appendix B. Estimating cube roots -- Appendix C. Checks for divisibility -- Appendix D. Why our methods work -- Appendix E. Casting out nines : Why it works -- Appendix F. Squaring feet and inches -- Appendix G. How do you get students to enjoy mathematics? -- Appendix H. Solving problems.
بدون عنوان
0
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
Using this book will improve your understanding of math and have you performing like a genius! Speed Mathematics teaches simple methods that will enable you to make lightning calculations in your head--including multiplication, division, addition, and subtraction, as well as working with fractions, squaring numbers, and extracting square and cube roots.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Mental arithmetic.
موضوع مستند نشده
Calcul mental.
موضوع مستند نشده
Mathematics-- Experiments.
موضوع مستند نشده
Mathematics-- Study and teaching.
موضوع مستند نشده
Mathematics, Popular works.
موضوع مستند نشده
Mathematics.
موضوع مستند نشده
Mental arithmetic.
موضوع مستند نشده
Mental arithmetic.
رده بندی ديویی
شماره
513/
.
9
ويراست
22
رده بندی کنگره
شماره رده
QA111
نشانه اثر
.
H26
2003
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )