Recognizing Key Words

1
Recognizing Key Words

• Solving Word Problems

2
Addition Key Words

• Add
• And
• Altogether
• Both
• In all
• Increased
• More
• Plus
• Sum
• Total

3
Subtraction Key Words

• Change (money received)
• Decrease
• Difference
• Left
• Lose (or lost)
• Morethan
• Reduce (or reduction)

4
Subtraction Key Words

• Remain (or remaining)
• Nearer/farther (and other er comparison words)

5
Multiplication Key Words

• Altogether
• In all
• Of
• Multiply
• Product
• Times
• Total
• Twice
• Whole

6
Division Key Words

• Average
• Cut
• Divide (d)
• Each
• Equal pieces
• Every
• One

7
Division Key Words

• Shared (d)
• Single
• Split

8
Finding Necessary Information

• The first step in solving a word problem is
  understanding what the question asks you to find.
• The second step is deciding what information is
  needed to answer the question.

9
What Is Necessary Information?

• Given information includes all of the numbers and
  labels that appear in a problem.
• Necessary information includes only those numbers
  and labels needed to answer a specific question.

10
In each problem, determine what you are being
asked to find.

• What is the total price of a quart of milk that
  costs 0.95 and a loaf of bread that costs 2.09?
• Answer What is the total price of a quart of
  milkand a loaf of bread. 0.95, 2.09

11

• While shopping on Tuesday, Juanita bought a dress
  for 44.95, a skirt for 25, a picture for
  19.75, and a glass bowl for 14.95. What amount
  did she spend for the clothes?
• Answer What amount did she spend for clothes?
  44.95, 25

12

• Brenda has lost 13 pounds on her diet. Her
  weight dropped from 167 pounds to 154 pounds. If
  she still wants to lose 14 more pounds, how much
  does Brenda want to lose in all?
• Answer How much does Brenda want to lose in all?
  13 pounds, 14 pounds

13

• In Canyonville there are 23, 458 registered
  voters. Of these, 13,228 are men and 10,230 are
  women. During the November election, 4,572 men
  voted. If 6,385 women also voted, how many
  people voted in this election?
• Answer How many people voted in this election?
  4,5726,385

14
Practice makes perfect

• At Papa Smurfs Grocery, Tra bought hamburger for
  3.58, a gallon of milk for 1.89, and a box of
  cereal for 2.79. If he paid the clerk with a
  twenty-dollar bill, how much change did he
  receive?
• Solution change20 minus total cost of
  groceries.

15

• Crystal, Tra, Kassie, Hallee Berry and Omarion
  agreed to split the cost of dinner evenly.
  Together they had a pizza for 12.75, drinks for
  4.30, and salads for 9.45. What was each
  persons share of the bill?
• Solution each share total cost divided by 5

16

• During a TV Special sale, Uptown Music Company
  shipped 1,238 boxes of compact discs. If each
  box held 13 compact discs, how many compact discs
  were shipped in all?
• Solution total compact discs total boxes
  shipped times compact discs.

17

• Craig drove his car an average of 1,154 miles
  each month last year. During the first three
  months this year, he has driven 954 miles, 876
  miles, and 1,105 miles. What number of miles has
  he put on his car so far this year?
• Solution total miles Jan. miles February
  miles March miles

18

• The End