Elapsed Time
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Estimate Sums
Find two numbers based on sum and difference
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100
Carter Ran A Marathon The race started at 10:00 A.M and Carter crossed the finish line at 3:30 P.M How long did it take carter to finish the marathon?
5 hours 30 min
100
Each day, a restaurant chain bakes 9,281 more cherry pies than peach pies. If bakers made 3,019 peach pies last Saturday, how many cherry pies did they bake that day?
12,300
100
100Estimate the sum by rounding each number to the nearest ten and then adding 42 + 59
100
100
The difference of two numbers is 3. Their sum is 13. What are the two numbers?
8 and 5
100
What is $458.95 rounded to the nearest 100 dollars?
$500.000
200
Zachary got to the school bus stop at eight o'clock in the morning. The bus came at ten past eight in the morning. How long did Zachary wait for the school bus?
10 Min
200
Sticklet Farms and Portnov Farms produce eggs. One has 6,383 hens, and the other has 4,741. How many hens do the two farms have?
11,124
200
Estimate the sum by rounding each number to the nearest sand and then adding. 1,637 + 3,604
11,000
200
The difference of two numbers is 8, and their sum is 10. What are the two numbers?
9 and 1
200
What is $48.81 rounded to the nearest 10 dollars?
$50.00
300
Tony started cleaning his room at 9:25. He finished cleaning it 55 minutes later. What time was it when Tony finished cleaning his room?
11:20
300
There is a big earthquake on an island. It causes 8,509 houses to lose electricity, but the other 5,294 houses on the island remain unharmed. How many houses are there on the island?
13,803
300
800Estimate the sum by rounding each number to the nearest hundred and then adding 696 + 114
800
300
The sum of two numbers is 13. The difference of the two numbers is 7. What are the two numbers?
10 and 3
300
What is $925.91 rounded to the nearest 10 cents?
$926.000
400
Jack Goes to GYM at 12.45 And goes back to his class at 1:00
how long is GYM?
400
Last year, 1,831 people were born in a country, and 6,051 people immigrated to it. How many new people began living in the country last year?
7,882
400
Estimate the sum by rounding each number to the nearest ten and then adding. 76 + 16
100
400
The sum of two numbers is 13. Their difference is 5. What are the two numbers?
9 and 4
400
What is $64.22 rounded to the nearest 10 dollars?
$60.000
500
Christina left the house at 3:00 P.M. She went to the post office, returned books to the library, and bought groceries at the store. She returned home at 5:15 P.M. How long was she running errands?
2 Hours 15 Min
500
Alice's car broke and she used $7,435 from her savings to have it repaired. After that, she had $9,480 left in savings. How much money did Alice have saved before her car broke?
16,915
500
Estimate the sum by rounding each number to the nearest ten and then adding. 92 + 72
160
500
The sum of two numbers is 16, and their difference is 2. What are the two numbers?
9 and 7
500
What is $741 rounded to the nearest 100 dollars?
$700.000
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