Understanding Adding and Subtracting Rational Numbers

What is the learning target for today's lesson?

• Adding and subtracting rational numbers using the algorithm

• Dividing rational numbers

• Multiplying rational numbers

• Solving quadratic equations

Tags

CCSS.7.NS.A.1C

What should you do every time you see a subtraction problem?

• Keep, Change, Change

• Divide, Multiply, Add

• Flip, Change, Keep

• Add, Subtract, Multiply

Tags

CCSS.7.NS.A.1D

What is another name for the 'Keep, Change, Change' method?

• Keep, Flip, Change

• KFC Method

• KCC

• KFC

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the first step in solving 5 1/2 - (-3/4) using the 'Keep, Change, Change' method?

• Multiply the fractions

• Rewrite the problem as an addition problem

• Find a common denominator

• Convert to improper fractions

Tags

CCSS.7.NS.A.1C

What is the common denominator for the fractions 1/2 and 3/4?

• 2

• 4

• 8

• 6

What is the result of adding 22/4 and 3/4?

• 25/4

• 24/4

• 26/4

• 23/4

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the improper fraction form of 5 1/2?

• 8/2

• 9/2

• 10/2

• 11/2

What is the alternative method for solving 5 1/2 - (-3/4) without converting to improper fractions?

• Add the whole numbers first

• Subtract the fractions first

• Multiply the fractions first

• Keep the mixed numbers and add directly

Tags

CCSS.7.NS.A.1C

How do you make -4 a fraction?

• Put a 1 underneath it

• Put a 4 underneath it

• Put a 3 underneath it

• Put a 2 underneath it

Tags

CCSS.3.NF.A.3C

What is the final answer for 1 2/5 + (-4)?

• -3 3/5

• -2 2/5

• -2 3/5

• -3 2/5

Tags

CCSS.7.NS.A.1C