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2 nd Week of EOG Review Book

2 nd Week of EOG Review Book. Divisibility Rules:. The rules for the following numbers: 2: when a number is even (20, 12, 16……) 3: Add the numbers up and if it is a multiple of three then it is divisible by three…(ex.. 36 = 3 + 6 = 9 which is a multiple of three)

jeremy-benjamin
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2 nd Week of EOG Review Book

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  1. 2nd Week of EOG Review Book

  2. Divisibility Rules: The rules for the following numbers: 2: when a number is even (20, 12, 16……) 3: Add the numbers up and if it is a multiple of three then it is divisible by three…(ex.. 36 = 3 + 6 = 9 which is a multiple of three) 4: The last two numbers are a multiple of four…. (ex…228) 5: The number has to end in a five or zero …(ex…15, 20, 30……)

  3. 6: If the number is divisible by two and three then it is divisible by six. 9: the sum of the digits is a multiple of nine…..(ex…..33 = 3 + 3 = 9 which is a multiple of nine) 10: The number ends in zero….(ex….10, 200, 340…..)

  4. What are these numbers divisible by putting an “X” in each box that it is divisible by:

  5. Converting Fractions to Decimals • To convert a fraction to a decimal, divide the numerator by the denominator and add a decimal and two zero in the dividend. Keep adding zeros until it terminates or repeats. • You can also convert to decimals by getting the denominator to equal to 100. What ever you did to the denominator you do to the numerator. • 1. ¾ 2. 2/3 3. 3/5 4. 2/7

  6. Converting Fractions to Decimals • 4/5 • 3/5 • 7/9 • 3/16 • 2/3 • 5/8 • ½ • 5/12

  7. Converting Mixed numbers to decimals • If there is a whole number with a fraction, write the whole number to the left of the decimal point. Then change the fraction to a decimal. • Change the fraction by dividing the denominator into the numerator and adding a decimal and two zero or by setting the bottom denominator to a 10, 100, or 1,000. • Example) • 1. 4 1/10 2. 16 2/3 3. 12 7/8

  8. Changing Decimals to Fractions • 8 5/11 • 15 3/5 • 13 2/3 • 30 1/3 • 3 ½ • 1 7/8 • 7 1/4

  9. Changing Decimals to Fractions • Step1: Copy the decimal without the point. This will be the top number of the fraction • Step 2: The bottom number is a 1 with as many 0’s after it as there are digits in the top number. • Step 3: You then need to reduce the fraction 1. 0.2 2. 0.65 3. 0.125

  10. Changing Decimals to Fractions • 0.55 • 0.6 • 0.12 • 0.75 • 0.82 • 0.03 • 0.96

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