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fractions decimals exponents factors percents formulas word problems equations one-step notation proportions numbers reasoning common metric system estimating dividing multiplying scientific rational power multiple property tendancy central factorization greatest prime factor simplifying strategy least analysis dimenstional units customary “c´Ç³¾±è²¹°ù¾±²Ô²µ ordering drawings scale figures similar unit rates ratios inequality inequalities distributive front-end operations mean median mode multiples solving strategies decimal exponential integers functions percent variables factors prime numbers clustering rounding teen services librarians library libraries diameter radius circumference circles multi-step step bothsides odds probability similar figures scale drawings dimensional analysis prime factorization factor tree subtraction regrouping scientific notation divisability terms combining like inductive subtracting adding value absolute operation expressions readers' advisory sfbayarea baya outcomes teen atom education chemistry physical science elements science percents and equations tip mark up discount percent of change solveing two-step equations proportions percents translation construction pi f(x) linear rules y=mx+b y-intercept slope two relations transforming interest compound simple pre-algebra two-step change order special right triangles sine cosine tangent midpoint distance theorem pythagorean irrational squares root square mapping symmetry reflection markup