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Set 1-5 (pages 14–17) |
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| Tell how many tens,
hundreds, and thousands are in each number. |
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3,000 |
2. 40,000 |
3. 500,000 |
4. 6,000,000 |
| What number makes each statement true? |
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5. 50,000 = 500 x ? |
6. 7,000,000 = 7,000 x ? |
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7. 10,000 = 1,000 x ? |
8. 900,000 = 90 x ? |
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9.
A car costs $18,000. How many hundreds are in
18,000? |
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| Set 1-6 (pages
18–19) |
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| Use the Hiking problem. |
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| 1. |
Tell what you know. Identify key facts
and details. |
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| 2. |
Tell what the question is asking. |
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| 3. |
Show the main idea. |
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| 4. |
Solve the problem. |
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| Set 1-7 (pages
22–25) |
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| Use mental math to add or subtract. |
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1. 80 + 79 + 20 |
2. 308 + 95 + 5 |
3. 480 + 255 + 20 |
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4.
365 + 289 |
5. 523 – 198 |
6. 537 + 180 |
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7.
325 + 239 + 75 |
8. 87 + 38 + 62 |
9. 4,500 – 280 |
| 10. |
To add 390 + 420 with mental math, Carlton added 400 + 410. Is he correct?
Explain why or why not. |
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| Set 1-8 (pages
26–27) |
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| Round each number to the place of the underlined digit. |
| 1. 381,574 |
2. 10.284 |
3. 182,601,597 |
4. 36.91 |
| 5. 659,014 |
6. 81.985 |
7. 784,331,562 |
8. 5.548 |
| 9. |
The average distance of a golfer’s drives is 298.6 yards. Round
this distance to the nearest 10 yards. |
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