Arithmetricks: 50 Easy Ways to Add, Subtract, Multiply, and Divide Without a Calculator
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Arithmetricks: 50 Easy Ways to Add, Subtract, Multiply, and Divide Without a Calculator

 Taschenbuch
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ISBN-13:
9780471106395
Einband:
Taschenbuch
Erscheinungsdatum:
01.06.1995
Seiten:
160
Autor:
Edward H. Julius
Gewicht:
204 g
Format:
229x152x12 mm
Sprache:
Englisch
Beschreibung:
Aimed specifically at older children, this text explains how to add, subtract, multiply and divide using simple short-cuts. It aims to teach children how to perform quick, accurate calculations in their heads, and helps to prepare them for more advanced concepts.
BASIC MENTAL-MATH TRICKS. Addition. Subtraction. Multiplication. Division. MENTAL-MATH MASTER TRICKS. Addition. Subtraction. Multiplication. Division. ESTIMATION TRICKS. TRICKS TO CHECK YOUR ANSWER. Conclusion. Appendices. Answers to Exercises.
Packed with 50 tricks and tips that let you add, subtract, multiply, and divide in a flash, ARITHMETRICKS makes math easier and more fun than you've ever imagined. You won't need a calculator, or in many cases even a pencil, to come up with the correct answers. Just a few simple shortcuts will have you solving basic problems in record time.