GRADE 7 REVIEW A+ FINAL EXAM MONDAY, MAY 24 TH. SCIENTIFIC NOTATION Change from standard form to scientific notation Change from scientific notation to.

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Presentation transcript:

GRADE 7 REVIEW A+ FINAL EXAM MONDAY, MAY 24 TH

SCIENTIFIC NOTATION Change from standard form to scientific notation Change from scientific notation to standard form

YOUR TURN!!! Write in scientific notation10, x 10 4 Write in scientific notation x 10 5 Write in standard form 8.91 x ,000

SOLVING INEQUALITIES We solve inequalities in the same way that we solve equations The only RULE has to do with dividing or multiplying by a negative … What is it? When x or ÷ by a NEGATIVE, you reverse the inequality symbol!!!

YOUR TURN!!! Solve5x > 100 x > 20 Solve m – 20 ≤ 4 x ≤ 24 Solvew ÷ (-10) < -20 w > 200

ORDER OF OPERATIONS PEMDAS Remember: “P” now stands for GROUPING SYMBOLS … including ( ), [ ], /

YOUR TURN!!! Simplify: 2 + [ (10-7) x 6² ] 2 + [ 3 x 6² ] 2 + [ 3 x 36 ] 2 + [ 108 ] 110

TRY IT AGAIN! Simplify: (8 + 2³)² (8 + 8)² (16)² 256

EQUIVALENT FRACTIONS TO CREATE AN EQUIVALENT FRACTION: Whatever you do to one side, you must do to the other! EX: 3= x 5 20 X = 12 x 4

READY??? EX: 13= x X = 26 EX: 7= 42 9 x X = 54 x 2 x 6

INTEGER RULES RECITE RULES TO ADD INTEGERS. WHAT ARE THE 4 STEPS TO SUBTRACT INTEGERS? TO MULTIPLY & DIVIDE INTEGERS …

WORD PROBLEMS EQUAL TEAMING HOW MANY WAYS CAN YOU DIVIDE 40 PEOPLE? (You can’t have a team of 1 member) Begin by listing the FACTORS 40: 1, 2, 4, 5, 8, 10, 20, 40 Do not count 1 or the factor So you have: 1, 2, 4, 5, 8, 10, 20, 40 6 WAYS TO DIVIDE

YOUR TURN! EQUAL TEAMING 9 members 9: 1, 3, 9 You have: 1, 3, 30 1 WAY TO DIVIDE

RATIOS THERE ARE 3 WAYS TO WRITE RATIOS FRACTION BAR TO : REMEMBER: THE 1 ST # MUST BE WRITTEN 1 ST REDUCE IF POSSIBLE

YOUR TURN! Write the ratio in 2 other ways: 15 boys to 11 girls 15 : 11 and 15/11 Write the ratio in 2 other ways: 8 boys / 12 girls 2 : 3 and 2 to 3

PROBABILITY FAVORABLE OUTCOME / TOTAL # OF OUTCOMES 8 boys & 12 girls, What is the probability that a boy will be chosen to answer this question? 15 boys & 11 girls, What is the probability that a girl will be chosen to answer this question?

GEOMETRY TERMS DIAMETER CHORD RADIUS CONGRUENT FIGURES SIMILAR FIGURES PYRAMID PRISM

MEASUREMENT PERIMETER METRIC UNITS: King Henry Doesn’t like drinking chocolate milk Kilo- Hecto- Deka- UNITS deci- centi- milli-

DATA ANALYSIS MEAN MEDIAN MODE RANGE

EXTRAS ORDERED PAIRS (X, Y) ADDING DECIMALS ABSOLUTE VALUE