CAHSEE DECIMALS - FRACTIONS percents

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1 STANDARD 1.2 PRESENTATION CREATED BY SIMON PEREZ RHS. All rights reserved Areas: Fraction to Decimal (%) Areas: Fraction to Percent. How? Converting Decimals to Fractions Shading a % of one area Areas: Decimal to Percent Shading areas (%) of Mixed Numbers Mixed numbers as percent A dollar beak-down Decimals to Mixed Numbers to % END SHOW

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2 1.3 Convert fractions to decimals and percents and use these representations in estimations, computations and applications. 1.3 Convertir fracciones a decimales y porcentajes y usar estas representaciones en estimaciones, cálculos y aplicaciones. GRADE 7: Number Sense

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3 STANDARD 1.2 = . 1 1 OR = . 1 1 Express the shaded area as a fraction and as decimal What is this in percent?

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4 STANDARD 1.2 = . 2 1 OR = . 2 1 Express the shaded area as a fraction and as decimal What is this in percent?

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5 STANDARD 1.2 = . 3 1 OR = . 3 1 Express the shaded area as a fraction and as decimal What is this in percent?

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6 STANDARD 1.2 = . 4 1 OR = . 4 1 Express the shaded area as a fraction and as decimal What is this in percent?

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7 STANDARD 1.2 = . 5 1 = . 5 1 OR Express the shaded area as a fraction and as decimal What is this in percent?

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8 STANDARD 1.2 = . 6 1 = . 6 1 OR Express the shaded area as a fraction and as decimal What is this in percent?

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9 STANDARD 1.2 27% What is the shaded area as fraction, as decimal and as percent? Why 27%? .27 The point travels 2 decimal places to the right and add % sign = 27% = 27. (.27)(100%) = 27% or

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10 STANDARD 1.2 33% What is the shaded area as fraction, as decimal and as percent? Why 33%? .33 The point travels 2 decimal places to the right and add % sign = 33% = 33. (.33)(100%) = 33% or

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11 STANDARD 1.2 45% What is the shaded area, as decimal and as percent? Why 45%? .45 The point travels 2 decimal places to the right and add % sign = 45% = 45. (.45)(100%) = 45% or

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12 STANDARD 1.2 55% What is the shaded area as fraction, as decimal and as percent? Why 55%? .55 The point travels 2 decimal places to the right and add % sign = 55% = 55. (.55)(100%) = 55% or

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13 STANDARD 1.2 100% What is the shaded area as fraction, as decimal and as percent? Why 100%? 1.0 The point travels 2 decimal places to the right and add % sign = 100% = 100. 0 (1.0)(100%) = 100% or

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14 STANDARD 1.2 49% Convert to decimal the percent below: OR = .49 We shift the decimal point two places to the left.

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15 STANDARD 1.2 Convert to decimal the percent below: 58% OR = .58 We shift the decimal point two places to the left.

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16 STANDARD 1.2 Convert to decimal the percent below: 8% OR = .08 We shift the decimal point two places to the left. 0

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17 STANDARD 1.2 Convert to decimal the percent below: 5% OR = .05 We shift the decimal point two places to the left. 0

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18 STANDARD 1.2 Fill in enough squares to have 30% Fill in enough squares to have 60% Fill in enough squares to have 36% Fill in enough squares to have 77%

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19 STANDARD 1.2 Fill in enough squares to have 20% Fill in enough squares to have 40% Fill in enough squares to have 68% Fill in enough squares to have 99%

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20 STANDARD 1.2 75% .75 Convert to fraction the following decimals: .75= .15 .15= .8 .8= 15% 80% What is the percent? .3 .3= 30%

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21 STANDARD 1.2 = 1.3 1 1.3 The point travels 2 decimal places to the right and add % sign. = 130. 0 = 130 % Express as a mixed number, as a decimal and as percent the following area:

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22 STANDARD 1.2 = 1.9 1 1.9 The point travels 2 decimal places to the right and add % sign. = 190. 0 = 190 % Express as a mixed number, as a decimal and as percent the following area:

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23 STANDARD 1.2 = 1.03 1 1.03 The point travels 2 decimal places to the right and add % sign. = 103. = 103 % Express as a mixed number, as a decimal and as percent the following area:

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24 STANDARD 1.2 = 2.6 2 2.6 The point travels 2 decimal places to the right and add % sign. = 260. 0 = 260 % Express as a mixed number, as a decimal and as percent the following area:

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25 STANDARD 1.2 = 1.06 1 1.06 The point travels 2 decimal places to the right and add % sign. = 106. = 106 % Express as a mixed number, as a decimal and as percent the following area:

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26 STANDARD 1.2 = 2.43 2 2.43 The point travels 2 decimal places to the right and add % sign. = 243. = 243 % Express as a mixed number, as a decimal and as percent the following area:

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27 STANDARD 1.2 Shade 267% below:

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28 STANDARD 1.2 Shade 155% below:

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29 STANDARD 1.2 Shade 298% below:

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30 STANDARD 1.2 Convert to mixed number the following decimals: What is the percent? 136% 1.36 1.36= 320% 3.2 3.2= 521% 5.21 5.21= 470% 4.7 4.7= 101% 1.01 1.01=

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31 STANDARD 1.2

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32 STANDARD 1.2 1% 5% 10% 25% 50% 100%

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