Word Problems

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# Word Problems - PowerPoint PPT Presentation

Word Problems. Objective: Students will solve word problems involving decimals. Standard: NS 2.1 Add, subtract, multiply, and divide with decimals, and verify the reasonableness of the results. Decimal Poem. Decimal point, decimal point, where do you go? In addition and subtraction,

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## PowerPoint Slideshow about ' Word Problems' - marilu

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### Word Problems

• Standard: NS 2.1 Add, subtract, multiply, and divide with decimals, and verify the reasonableness of the results.
Decimal Poem

Decimal point, decimal point,

where do you go?

You line up in a row.

When we multiply decimals,

We count their places,

Put a decimal in the product,

Counting right to left spaces.

Decimal point, decimal point,

Where do you go?

A decimal in the quotient,

Aligns with the dividend below.

Warm Up
• On your whiteboards, find solutions to the following problems:

459.8 – 12.34

24.67 X 1.8

0.63 ÷ 0.07

1.92 + 26

447.46

44.406

9

27.92

Center Directions
• You will be working in groups to solve a word problem.
• You will need to complete the worksheet for each problem.
• You will have 12 minutes at a center, then rotate to the next center.
• Your group will be responsible to present your solutions to the class.
Group Norms
• Listen to each other’s ideas.
• Respect everyone’s opinion by asking for clarification.
• Politely agree or disagree.
• Investigate together and stay on task.
• Make sure everyone in your group can explain your group’s thought process.
Watch Me
• Homer bought 3 small bags of potato chips that cost 69 cents each. How much did they cost altogether?
• \$2.07
Group Norms
• Listen to each other’s ideas.
• Respect everyone’s opinion by asking for clarification.
• Politely agree or disagree.
• Investigate together and stay on task.
• Make sure everyone in your group can explain your group’s thought process.
#1
• Maria had \$4.65 in nickels. How many nickels did she have?
• She has 93 nickels.
#2
• Max and Moe each timed his own quarter-mile run with a stopwatch. Max says that he ran the quarter in 74.5 seconds. Moe is more accurate. He reported his run as 81.34 seconds. How many seconds faster did Max run than Moe?
• Max ran 6.84 seconds faster than Moe.
#3
• Lexi has \$25 to buy workout clothes. She needs to buy a pair of gym shorts for \$7.95, a long-sleeved t-shirt for \$8.29, and a pair of crew socks for \$3.50. Does Lexi have enough money to pay for all three items? If so, how much change will she get back? (All items include sales tax.)
• Yes, Lexi has enough money. She has \$5.26 left.
#4
• The price of an ant farm is twenty-eight dollars. The cash register multiplies the price by 1.07 to find the total cost including tax. What is the total cost of the ant farm?
• The total cost of the ant farm is \$29.96.
Ticket Out the Door
• It costs 33 cents to mail a letter and 20 cents to mail a postcard. Maria is going to the post office to mail two letters and three postcards. She has \$2 to spend. Does she have enough money? If so, how much change will she get back?
#1
• Maria had \$4.65 in nickels. How many nickels did she have?
#2
• Max and Moe each timed his own quarter-mile run with a stopwatch. Max says that he ran the quarter in 74.5 seconds. Moe is more accurate. He reported his run as 81.34 seconds. How many seconds faster did Max run than Moe?
#3
• Lexi has \$25 to buy workout clothes. She needs to buy a pair of gym shorts for \$7.95, a long-sleeved t-shirt for \$8.29, and a pair of crew socks for \$3.50. Does Lexi have enough money to pay for all three items? If so, how much change will she get back? (All items include sales tax.)
#4
• The price of an ant farm is twenty-eight dollars. The cash register multiplies the price by 1.07 to find the total cost including tax. What is the total cost of the ant farm?