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Means “per 100” or how many “out of 100”; percent is another name for hundredths Move the decimal two places to the left. (divide by 100) 38% = 0.38 (=

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Presentation on theme: "Means “per 100” or how many “out of 100”; percent is another name for hundredths Move the decimal two places to the left. (divide by 100) 38% = 0.38 (="— Presentation transcript:

1 means “per 100” or how many “out of 100”; percent is another name for hundredths Move the decimal two places to the left. (divide by 100) 38% = 0.38 (= 38 ÷ 100) Move the decimal two places to the right and attach percent sign. (multiply by 100) 0.60 = 60% 1/5 = ___/100 = 20% 0.2 or 0.20 Put the percent over 100 and simplify the fraction. 75% = = Drop the numerator down next to the denominator and divide denominator into numerator. You’ll have put a decimal in the numerator and annex zeroes until it either terminates or repeats. Put the number to the right of the decimal over 10, 100, 1000, etc and simplify. It is determined by the last place value (place value farthest right) 0.3 = 0.60 = = 75/100 = 3/4 0.75 Percent means….. How do you change a percent into its equivalent decimal form? How do you change a decimal into its equivalent percent form? 1/5 = what percent & decimal form? How do you make a percent into its equivalent fraction form? How do you change a fraction into its equivalent decimal form? How do you change a decimal into its equivalent fraction form? 75% = what fraction and decimal form?

2 70% 7/10 40% 0.4 or 0.40 40/100 = 2/5 True A ratio can compare part of a set to the entire set (part-whole comparison). A ratio can compare part of a set to another part of the same set (part-part comparison). A ratio can compare part of a set to a corresponding part of another set (part-part comparison). A ratio can compare all of a set to all of another set (whole- whole comparison). 2% 2/100 = 1/50 Word “to” (2 to 3) Fraction form ( ) Colon (2:3) But all three forms are read with the word “to” Ratio The set of natural numbers is the set of counting numbers. (1, 2, 3,  ). 0.7 = what percent and fraction form? What is the percent, decimal, & fraction (simplified)? True or False? All fractions are ratios. What are the 4 ways a ratio can compare? 0.02 = what percent and fraction form? What are three forms of a ratio? What is a comparison of any two quantities and conveys an idea that cannot be expressed as a single number? What are natural numbers?

3 The set of whole numbers is the set of natural numbers and zero (0, 1, 2, 3,  ). Multiple Least Common Multiple (LCM) Prime Number Factor Common Greatest Common Factor (GCF) Composite Number What are whole numbers? The product of the number and any natural number? What is the smallest common multiple of any two or more given numbers called? What is a number that has exactly two different factors, one and the number itself? An integer that divides evenly into that number (divisor of that number)? A _______ factor of two or more numbers is a divisor that all of the numbers share. What is the largest common factor that any 2 or more numbers share called? What is a natural number that has more than two different factors?

4 Zero and One 9 numbers (2, 3, 5, 7, 11, 13, 17, 19, 23) Integers Less than Prime factorization ( 30 = 2 x 3 x 5) 6 numbers (29, 31, 37, 41, 43, 47) Greater than -2 (negative two) What two numbers are neither prime nor composite? How many of the following numbers are prime numbers? 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 What is the set of whole numbers and their opposites? (positive and negative whole numbers) Negative integers are less than or greater than zero? What is the representation of the number as the product of its prime factors? How many of the following numbers are prime numbers? 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 Positive integers are less than or greater than zero? What is the opposite of 2?

5 -3 > -6, -2, 0, 2, 9 12:10 6:5 6 to 5 6/5 4/6 2/3 2 to 3 2:3 A B Which is greater -3 or -15? -8 ___ -9, or =? Order the following integers from least to greatest? 2, -2, 0, -6, 9 There are 10 boys and 12 girls. What is the ratio of girls to boys? A B C D Which of the following points is the least value? A B 0 C D Which point represents -2? Which of the following rectangular arrays represents a prime number? What is the ratio of smiley faces to the other shapes?


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