The tower has gone dark
At sunrise, the baby dragon reached the Ten-Thousand Tower. Its number stones had fallen out of place, and the map home had disappeared.
Hundreds, tens, and ones were scattered near the gate. The dragon needs a place-value guide. Help return every number stone to its proper place. When the last beacon shines, the first path through DragonLand Blue will open.
Worked examples
In 6,482, the digit 4 is in the hundreds place, so its value is 400. Expanded form is 6,000 + 400 + 80 + 2.
Compare 4,918 and 4,891. The thousands digits tie. The hundreds digits are 9 and 8. Since 9 is greater than 8, 4,918 is greater than 4,891.
Round 8,647 to the nearest hundred. The tens digit is 4, so keep 6 hundreds and change tens and ones to zero: 8,600.
Tower activities
In 6,482, what is the value of the digit 4?
Write 7,305 in expanded form.
Write 4,072 in word form.
Build the number: 5 thousands, 8 hundreds, 0 tens, and 6 ones.
Write <, >, or = : 4,918 ___ 4,891
Which is greatest: 3,842; 3,482; or 3,824?
Order from least to greatest: 6,109; 6,901; 6,190.
Round 8,647 to the nearest hundred.
Round 3,451 to the nearest ten.
Round 7,550 to the nearest thousand.
A beacon shows 9,204. What is the value of the digit 9?
Write 2,000 + 600 + 40 + 7 in standard form.
A tower has 4,398 stones. Is that closer to 4,000 or 5,000?
Choose the larger number: 7,090 or 7,900. Explain using place value.
Create a number greater than 6,500 but less than 6,600.
The final code is 8 thousands, 3 hundreds, 4 tens, and 2 ones. Write it in standard and expanded form.
Compare the final code with 8,324 using <, >, or =.
Round the final code 8,342 to the nearest hundred.
Answer key
- Q1: 400
- Q2: 7,000 + 300 + 5
- Q3: four thousand seventy-two
- Q4: 5,806
- Q5: >
- Q6: 3,842
- Q7: 6,109; 6,190; 6,901
- Q8: 8,600
- Q9: 3,450
- Q10: 8,000
- Q11: 9,000
- Q12: 2,647
- Q13: 4,000
- Q14: 7,900; the hundreds digit 9 is greater than 0 after the thousands digits tie.
- Q15: Answers vary; any whole number from 6,501 through 6,599.
- Q16: 8,342; 8,000 + 300 + 40 + 2
- Q17: 8,342 > 8,324
- Q18: 8,300