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Topics for th 7 grade Mid-Year Exam Simplifying expressions • Eight times a number plus 4 • Twelve less than a number • The quotient of a number r and 9 • The product of 82 and g • The total of 27 and j Expressions from word problems Joanna bought n pairs of socks at Hot Topic. Bo went the next day and bought twice as many as Joanna, plus three more pairs. Write an expression for the number of pairs of socks Bo bought. Integer Rules a) 16 – (-12) b) 4 + (-7) c) -2 + (-29) d) 30 – 35 Integer Rules a) - 12 · (-10) b) 36 (-6) Solving equations • Inverse Operation 7g = 21 x = -8 6 Solve the equation: • Inverse Operation .4n = 24 -25 = v + (-10) Inequality and Graphs Solve the following inequality and graph: -7g > 49 Absolute Value | - 12 | -| 3 | | 6 | + | -2 | Order of operations 60(18 – 12 + 2) (-4)2 · 11 ÷ (-4) a b Evaluate expressions given values for variables Solve if a = 6 2ac – 4b b = 3 and c =10 Evaluate Solve if b = 4 2b2 – 3 b3 – 2 Fractions • Comparing Numbers Put in order from least to greatest: 4, |-5|, -|-8|, -7 Simplify: b + 4 (6-b) Plot points on a coordinate grid • Coordinate points (x, y) • Know all parts of the coordinate plane • A (3, -4) and B (-2,1) Patterns Write the next integer: -3, 6, 18, 33, ___ Formulas • Be able to work with formulas like (d=rt) when you are given 2 of the variables in the formula and asked to find the 3rd. • Use FFSS • Use the formula d = rt to find the time it takes to drive 110 mi at 5 mi/h? Round to the nearest tenth. Mean Median Mode • Mean, median, mode 72, 68, 69, 71, 72, 73