Chapter 4 Chapter 4

DivisibiliDivisibility ty

Let’s tree Let’s tree it!!it!!

Mixing Mixing NumbersNumbers

Fractions Fractions Estimating Estimating FractionsFractions

10 10 10 10 10

20 20 20 20 20

30 30 30 30 30

40 40 40 40 40

50 50 50 5050 5050

Ch. 4

Tell whether 870 is divisible by Tell whether 870 is divisible by 2,3,4,5,6,9,and 10. 2,3,4,5,6,9,and 10.

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What is the largest number that What is the largest number that divides both 12 and 30 evenly. divides both 12 and 30 evenly.

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The sixth grade class has 12 boys The sixth grade class has 12 boys and 8 girls. The teacher wants to and 8 girls. The teacher wants to divide them into groups that have divide them into groups that have the same number of boys and the the same number of boys and the same number of girls. What is the same number of girls. What is the

greatest possible number of groups greatest possible number of groups the teacher can make?the teacher can make?

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At the pet fair, there are 42 dogs At the pet fair, there are 42 dogs and 35 cats. The pets must be and 35 cats. The pets must be split into small groups so that split into small groups so that there are the same of dogs in there are the same of dogs in

each group and the same each group and the same number of cats. What is the number of cats. What is the

greatest number of groups that greatest number of groups that can be made so that each can be made so that each

animal is in a group? animal is in a group? Back to Main

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Tell whether 545 is divisible by Tell whether 545 is divisible by 2,3,4,5,6,9, and 10. 2,3,4,5,6,9, and 10.

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Is 13 prime or composite? Is 13 prime or composite?

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List the factors of 15. List the factors of 15.

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Write the prime factorization of 120 Write the prime factorization of 120 using exponents.using exponents.

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Find the GCF of 63 and 72. Find the GCF of 63 and 72.

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Write the prime factorization of Write the prime factorization of the number 12 and 27. Then the number 12 and 27. Then

identify the GCF of both identify the GCF of both numbers. numbers.

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Write the decimal 1.23 as a Write the decimal 1.23 as a fraction or mixed number. fraction or mixed number.

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Write the mixed number 5 3/5 Write the mixed number 5 3/5 as a decimal. as a decimal.

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Write 5 2/5 as an improper Write 5 2/5 as an improper fraction fraction

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Write 61/12 as a decimalWrite 61/12 as a decimal

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Write the mixed number for Write the mixed number for 133/12133/12

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Order the fractions and decimals Order the fractions and decimals from least to greatest 0.78, 0.5, 3/5from least to greatest 0.78, 0.5, 3/5

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Order 4/5, 4/11, And 3/11 from least to Order 4/5, 4/11, And 3/11 from least to greatest greatest

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Find the missing number that makes Find the missing number that makes the fraction equivalentthe fraction equivalent

2/5 = ?/15 2/5 = ?/15

Find two equivalent fractions for 6/16Find two equivalent fractions for 6/16

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This winter has seen higher than This winter has seen higher than average snowfall. In December 7.3 average snowfall. In December 7.3

inches of snow fell, January seven and inches of snow fell, January seven and one fourth inches fell, February 7 1/2 one fourth inches fell, February 7 1/2

inches fell. Order the months from least inches fell. Order the months from least to greatest amount of snowfall. to greatest amount of snowfall.

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When adding or subtracting a When adding or subtracting a series of decimals numbers, what is series of decimals numbers, what is the first and most important thing to the first and most important thing to

know? know?

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Write the fraction 36/42 in simplest Write the fraction 36/42 in simplest formform

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Two hiking trails are 4 5/7 and 2 2/5 Two hiking trails are 4 5/7 and 2 2/5 miles long, estimate how far you miles long, estimate how far you

would go if you walked both trails. would go if you walked both trails.

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Two hiking trails are 4 5/7 and 2 2/5 Two hiking trails are 4 5/7 and 2 2/5 miles long, estimate how far you miles long, estimate how far you

would go if you walked the first trail would go if you walked the first trail twice. twice.

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Sean orders a pizza for himself and Sean orders a pizza for himself and his friend Chris. Chris is late his friend Chris. Chris is late

arriving at David’s house, so David arriving at David’s house, so David begins eating without him. If David begins eating without him. If David eats 5/12 of the pizza, how much is eats 5/12 of the pizza, how much is

left? left?

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