objectives addressed : explain math concepts and problem solutions orally and in writing. understand...
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Objectives addressed:
• Explain math concepts and problem solutions orally and in writing.
• Understand concepts of rounding whole numbers and estimation.
• Applying problem solving strategies to real-world problems.
![Page 3: Objectives addressed : Explain math concepts and problem solutions orally and in writing. Understand concepts of rounding whole numbers and estimation](https://reader036.vdocuments.us/reader036/viewer/2022082517/56649dca5503460f94ac0cde/html5/thumbnails/3.jpg)
Directions
• When ever you see this picture, you will need to write the answer in your math journals.
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Round 123 to the nearest
1. Hundred.2. Ten
1. 1002. 120
Explain why you think this.
![Page 5: Objectives addressed : Explain math concepts and problem solutions orally and in writing. Understand concepts of rounding whole numbers and estimation](https://reader036.vdocuments.us/reader036/viewer/2022082517/56649dca5503460f94ac0cde/html5/thumbnails/5.jpg)
Round 627 to the nearest
1. Hundred
2. Ten
1. 600
2. 630
Explain why you think this.
![Page 6: Objectives addressed : Explain math concepts and problem solutions orally and in writing. Understand concepts of rounding whole numbers and estimation](https://reader036.vdocuments.us/reader036/viewer/2022082517/56649dca5503460f94ac0cde/html5/thumbnails/6.jpg)
Round 1,627 to the nearest
1. Thousand2. Hundred3. Ten
1. 2,0002. 1,6003. 1,630
Explain why you think this.
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Round 5,986 to the nearest
1. Thousand2. Hundred3. Ten
1. 6,0002. 6,0003. 5,990
Explain why you think this.
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Round 11,485 to the nearest
1. Ten Thousand2. Thousand3. Hundred4. Ten
1. 10,0002. 11,0003. 11,5004. 11,490
Explain why you think this.
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Round 78,499 to the nearest
1. Ten Thousand2. Thousand3. Hundred4. Ten
1. 80,0002. 79,0003. 78,5004. 78,500
Explain why you think this.
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What digit(s) can help you round to the nearest thousand?
1.) 27,485 2.) 26,825 3.) 27,612
Round to the nearest thousand
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What digit(s) can help you round to the nearest thousand?
1.) 27,485 2.) 26,825 3.) 27,612
Round to the nearest thousand
1.) 27,000 2.) 27,000 3.) 28,100
Explain why you think this.
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The population of the city of Middletown was 47,438 in the year
2005. To the nearest thousand, what was the population?
47,438 is betweenis between 47,000 and 48,000, but it is closer to 47,000.
Explain why you think this.
48,00047,00047,438
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Mr. Skelly’s class is planning on making pizza. Below is a list of everything you will
need to buy. About now much money does your class need to bring to the store?
• 1 8 oz. bag of mozzarella cheese$8.47
• 1 medium onion$0.49
• 1 pepperoni stick$1.95
• 1 can of tomato sauce$3.78
• 1 2 oz. can of mushrooms$2.36
• 1 package of pizza dough$6.99 Estimate!
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• 1 8 oz. bag of mozzarella cheese $8.47 $8.00• 1 medium onion $0.49 $0.50• 1 pepperoni stick $1.95 $2.00• 1 can of tomato sauce $3.78 $4.00• 1 2 oz. can of mushrooms $2.46 $2.50
• 1 package of pizza dough $6.99 + $7.00
• Your class will need about $25.00
There are different ways you can estimate the total cost. Did you or can you come up with any other ways?
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Estimate the number of jelly beans in the full jar.
10 jelly beans
Estimate:____________