the standard form of the number ten thousand, four hundred seventy-six
What is 10,476
100
symbol needed for this number sentence:
683 ____ 691
What is <, or "less than"
100
Ursula the octopus has 554 suction cups on her arms. Round this number to the nearest ten.
What is 550
100
Angie says that 145 is the same thing as one hundred forty-five. Gary says 145 is the same as 40 + 100 + 5. Which person is correct?
They are both correct.
100
Marlene has 14 cats. She rounds the number of cats to 20. What is wrong with Marlene's math?
14 is less than halfway to 20, so it would round down to 10.
200
50,000 + 3,000 + 800 + 20 + 6
What is 53,826
200
symbol that makes this number sentence true:
7,000 + 400 + 3 ________ 834
What is >, or "greater than"
200
Round 839 to the nearest ten AND to the nearest hundred.
What is 840 and 800
200
Forest fires burned 140 acres of the forest last week. Write two numbers that could round to 140.
What are 135, 136, 137, 138, 139, 141, 142, 143, 144
200
Franklin wants to estimate the number of miles he has driven on vacation. The actual number of miles is 8,219, so he estimates that he has driven 9,000 miles. What is wrong with Franklin's estimate?
8,219 would round down to 8,000, rather than up to 9,000
300
Describe how you would draw a base-ten model for the number 4,603.
What is four thousands blocks, six hundreds blocks, zero tens blocks, and three ones blocks
300
Order from greatest to least:
393, 913, 193, 319
What is 913, 393, 319, 193
300
If you round 381 to the nearest hundred, will it round up or down? Explain how you know.
It will round up, because 381 is closer to 400 than it is to 300.
300
The photographer took 478 pictures today. About how many pictures is this?
What is 500
300
Alex writes down the number of eggs his hens have laid each day. On Tuesday, they laid 43 eggs. On Wednesday, they laid 29 eggs, and on Thursday, they laid 31 eggs. Alex estimates that they have laid 70 eggs altogether. Explain why his estimate is incorrect.
He forgot to add one of the addends. 40 + 30 = 70, but there are another 30 eggs that still need to be added, for an estimated total of 100 eggs.
400
seventeen thousand, fifty-four in expanded form
What is 10,000 + 7,000 + 50 + 4
400
Order from least to greatest:
14,388; 14,112; 13,998; 15,001
What is 13,998; 14,112; 14,388; 15,001
400
I spend $246 on groceries at Walmart. About how much money is this?
What is $200
400
My friend and I picked about 340 berries at the farm yesterday. Write two numbers that could be actual totals for the berries we picked.
What is 335, 336, 337, 338, 339, 340, 341, 342, 343, 344
400
Tony estimates that he scooped 600 rocks with his backhoe. Raphael says that there could be 549 actual rocks in the scoop. Is he right or wrong? Why?
Raphael is wrong because 549 rounded to the nearest hundred would only be 500 rocks.
500
400 + 100,000 + 30 + 6,000 + 5
What is 106,435
500
Jacob has 493 baseball cards. His friend Jose has 457 cards, and his cousin Jessie has 513 cards. Put the boys in order from greatest to least, based on the number of cards they own.
What is Jessie, Jacob, and Jose
500
Explain how to round 8352 to the nearest ten.
Circle the tens place (5). Underline the ones place (2). The 2 is closer to 50 than to 60, so round down. Write the thousands and hundreds places as they were. The answer is 8350.
500
Henri learned about 130 new words when he read every day. Choose a number that would round to 130 and write it in three ways.
126
100 + 20 + 6
one hundreds block, two tens blocks, six ones
one hundred twenty-six
500
Daniel writes the number 672,003 in words. He writes: six hundred seventy-two, three. What is wrong with his answer?
He should have written six hundred seventy-two thousand, three.