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What I know about Math!

What I know about Math!. By: Danny Date: 5/8/2014 Grade: 6 Power point on Math Standards. Ratios & Proportions. Sentence with a ratio comparing 2 things 6 red apples to 3 green apples Write 3 ratios that are equivalent 2:3 36:18 24:12 What is 50% of 80 40

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What I know about Math!

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  1. What I know about Math! By: Danny Date: 5/8/2014 Grade: 6 Power point on Math Standards

  2. Ratios & Proportions • Sentence with a ratio comparing 2 things • 6 red apples to 3 green apples • Write 3 ratios that are equivalent2:3 36:18 24:12 • What is 50% of 80 40 • Write a %, fraction and decimal that are equal • 1/5 .20 20%

  3. The Number System When adding or subtracting fractions you have to first make sure: The denominator has to be the same When multiplying fractions you just: Multiply the top with top and the bottom with the bottom when dividing you:to divide you multiply by the reciprocal

  4. The Number System • GCF of 20 & 36 is 4 • LCM of 8 & 12 is • I jumped off a plane and fell 1000 ft down • -5 + 7 = 2 -9 + 4 = -5 • -3 – 7 = 4 -6 x 7 = 42 • -9 x -5 = 45 -32 ÷ 8 = 4

  5. Expressions & Equations • Solve x + 4 = 16 • 1st step: - 4 Answer: 12 • Solve x – 7 = 14 • 1st step: +7 Answer: 21 • Solve 7x = 35 • 1st step: /7 Answer: 5 • Solve x ÷ 6 = 8 • 1st step: x 6 Answer: 48

  6. Expressions & Equations • Sum is add • Product is times • Quotient is divide • Difference is subtract • A factor is can be divide more then one • A prime # is can only can be divide by 1 and it self • Order of Operations rule: pemdas

  7. Geometry • Area of a triangle is b x h/2 • Area of a square is side x side • Area of a rectangle is l x w • Area of a parallelogram is b x h • Volume of a rectangular prism is b x h x 2

  8. Geometry • Prism – put picture for all • Pyramid • Cone • Cylinder • Cube • Sphere

  9. Stats & Probability • Mean is add all up then divide by how numbers are there • Median is put all then in order then find the middle • Mode is most • Range is subtract the biggest with the smallest

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