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Word Problems

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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Word Problems

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  1. Word Problems

  2. 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.

  3. Decimal Poem Decimal point, decimal point, where do you go? In addition and subtraction, 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.

  4. 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

  5. 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.

  6. 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.

  7. Watch Me • Homer bought 3 small bags of potato chips that cost 69 cents each. How much did they cost altogether? • $2.07

  8. 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.

  9. #1 • Maria had $4.65 in nickels. How many nickels did she have? • She has 93 nickels.

  10. #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.

  11. #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.

  12. #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.

  13. 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?

  14. #1 • Maria had $4.65 in nickels. How many nickels did she have?

  15. #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?

  16. #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.)

  17. #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?

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