Adding and Subtracting Rational Numbers in Word Problems

Kyle owed his sister $12.45 that he borrowed to go see a movie. He earned $7.50 mowing the neighbor's lawn. How much does Kyle still owe his sister?

• He owes her $19.95.

• He owes her $4.95.

• He owes her nothing.

• He owes her $12.45.

Which real world context could be represented by -2 + 1 + 3?

• A baby's weight decreased by two pounds, increased by one pound, and then increased by three pounds.

• A share of stock decreased by two points, decreased by one point, then increased by three points.

• The temperature increased by two degrees, increased by one degree, and then increased by three degrees.

• A bank statement shows a withdrawal of two dollars, a withdrawal of one dollar, and a deposit of three dollars.

After a pizza party there are 4 2/3 pizzas left over. If the pizzas are divided so that party goers can take home 1/6 of a pizza, how many guests can take home pizza?

• 26 guests

• 28 guests

• 8 guests

• 33 guests

Bob has a piece of wood that is 3/4 inches long. He decides to cut pieces that are 1/8 inches long. How many pieces can Bob cut?

• 6

• 9

• 3

• 12

Mr. Smith has -$275.78 as his account balance. He deposits $539.20 into his account. What is Mr. Smith's account balance now?

• $813.98

• $263.42

• $539.78

• $345.98

• +241.68
• +59.02
• -59.02
• -241.68

What is the sum of 4 3/10 and (-6.2)? Express your answer as a decimal.

Mathematical Equivalence

ON

• $82.09
• $82.61
• $82.85
• $83.37

Find the sum. (-4.8) + 2.1

Mathematical Equivalence

ON

When adding or subtracting fractions, I must always have a (a)   . I then add or subtract the ​ (b)   and keep ​ (c)   the same.

• Common Denominator

• Numerators

• Denominator

• Common Numerators

• Divisor

• Dividend