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... † This text is available under the Creative Commons Attribution/Share-Alike License 3.0. You can reuse this document or portions thereof only if you do so under terms that are compatible with the CC-BY-SA license. ...
• Prime and Composite Numbers • Prime Factorization
... • Common Denominators • Adding and Subtracting Fractions with Different Denominators • To add or subtract fractions with different denominators: 1. Find the least common multiple (LCM) of the denominators. If the denominators are small numbers, use the times table. Look down the columns of each deno ...
... • Common Denominators • Adding and Subtracting Fractions with Different Denominators • To add or subtract fractions with different denominators: 1. Find the least common multiple (LCM) of the denominators. If the denominators are small numbers, use the times table. Look down the columns of each deno ...
Number Sequences1
... be a three in the formula, etc. In many cases, square numbers will come up, so try squaring n, as above. Also, the triangular numbers formula often comes up. This is n(n + 1)/2 . Example: Find the nth term of the sequence: 2, 6, 12, 20, 30... n ...
... be a three in the formula, etc. In many cases, square numbers will come up, so try squaring n, as above. Also, the triangular numbers formula often comes up. This is n(n + 1)/2 . Example: Find the nth term of the sequence: 2, 6, 12, 20, 30... n ...
Rational numbers - David Michael Burrow
... Cheap calculators normally have a fraction key that looks like ab/c . You can enter ¾ by typing 3 ab/c 4. You can use this key to reduce fractions (hit = after entering a fraction) and to do math with fractions. ...
... Cheap calculators normally have a fraction key that looks like ab/c . You can enter ¾ by typing 3 ab/c 4. You can use this key to reduce fractions (hit = after entering a fraction) and to do math with fractions. ...