Adding Subtracting Multiplying Dividing Facts

When adding or subtracting fractions, we

• must change the denominators into whatever we want to

• must have different denominators

• must find the highest common denominator

• must find the lowest common denominator

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

When dividing a cake into 5 equal pieces, we refer to each piece as

• fifths

• fives

• fifteenths

• fifty-five

Tags

CCSS.1.G.A.3

-9 + (-5)

• -14

• 14

• -4

• 4

Tags

CCSS.7.NS.A.1C

(-25) ÷ (-5)

• 5

• -5

• -20

• -30

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

64 ÷ (-8)

• 8

• -8

• -9

• -7

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

(-30) ÷ 3 + 5

• 5

• 15

• -5

• -15

Tags

CCSS.7.NS.A.3

• -50

• 4

• 50

• -10

Tags

CCSS.7.NS.A.1C

• 7
  

• 6

• -6

• -7

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Which situation could the integer -50 represent?

• a deposit of $50

• the temperature on a warm Spring day

• the distance driven on the way to the beach

• a decrease of 50 employees

Tags

CCSS.6.NS.C.5

A football team gained 9 yards on one play and then lost 22 yards on the next play. Write a sum of integers to find the overall change in field position.

Tags

CCSS.7.NS.A.1C