Industrial Skills Math and Measurement Review: Skill Assessment Quiz.

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Presentation transcript:

Industrial Skills Math and Measurement Review: Skill Assessment Quiz

Whole Numbers 1.Add =  ,293 2.Subtract 847 from 9321=  9, ,474 3.Multiply 784 by 13 =  784 Χ ,192 4.Divide 3172 by 152 = 21 

Fractions: Addition 5.Add 3/8 + 5/8 + 7/8 =  3/8 5/8 7/8 15/8 = 1 7/8 (Common Denominators) 6.Add 10 9/ / /2 + 3 =  10 9/16 = 9/16 4 1/8 = 2/16 2 1/2 = 8/ /16 = 20 3/16 (Uncommon Denominators)

Fractions: Subtraction 7.Subtract 1 7/8 from 2 3/8 =  2 3/8 = 1 11/ /8 = 1 7/8 0 4/8 = 1/2 (Common Denominators) 8.Subtract 7 13/16 from 10 1/4 =  10 1/4 = 9 20/ /16 = 7 13/16 2 7/16 (Uncommon Denominators)

Fractions: Multiplication 9.Multiply 7/8 by 3/4 =  7/8 x 3/4 = 21/32 (Numerator x Numerator) (Denominator x Denominator) 10.Multiply 1 1/2 x 1 1/2 x 1 1/2 =  3/2 x 3/2 = 9/4 x 3/2 = 27/8 = 3 3/8 Or  3 x 3 x 3 27 == 3 3/8 2 x 2 x 2 8

Fractions: Division ÷ 1/4 = (invert the divisor and multiply)  21/1 x 4/1 = 84/1 = /4 ÷ 21 = (invert the divisor and multiply)  1/4 x 1/21 = 1/ /16 ÷ 1/4 = (invert the divisor and multiply)  3 1/16 = 49/16 therefore  49/16 x 4/1 = 196/16 (12 x 16 = 192) = 12 4/16 = 12 1/4 Or  3 ÷ 1/4 = 3/1 x 4/1 = 12/1 1/16 ÷ 1/4 = 1/16 x 4/1 = 4/16 Therefore 12/1 + 4/16 = 12 4/16 = 12 1/4

Decimals: Addition & Subtraction 14.Add =  (When adding numbers, align the decimals) Subtract from =  (When subtracting numbers, align the decimals)

Decimals: Multiplication 16.Multiply 1125 x 1.5 =  1125 x Multiply x 2.51 =  x

Decimals: Division 18.Divide by 72 = 4.53  Divide by = 9.  Divide.133 by.7 =. 19 

Conversions: Fractions to Decimals 21.Convert 3/8 inch to a decimal =.375 inches 3 ÷ 8 =.375 Or 1/2” =.50” 1/4” =.25” 1/8” =.125” 1/16” =.0625” So.25” +.125” =.375” 22.Convert 1 3/4 inch to a decimal = 1.75 inches 3 ÷ 4 =.75 therefore = 1.75 Or 1/2” =.50” 1/4” =.25” 1/8” =.125” So 1” +.50” +.25” = 1.75”

Conversions: Decimals to Fractions 23.Convert inches to a common fraction = 1.125” = 1 125/1000 ” Or 1/2” =.50” 1/4” =.25” 1/8” =.125” 1/16” =.0625” So 1” +.125” = 1 1/8 ” 24.Convert inches to a common fraction = 2.625” = 2 625/1000 ” Or 1/2” =.50” 1/4” =.25” 1/8” =.125” 1/16” =.0625” So 2” +.50” +.125” = 2 5/8 ”

Estimating Measurements: Draw a line in the space below that you would estimate to be approximately 1 inch long. Draw a line in the space below that you would estimate to be approximately 50 millimeters long