Estimating sums and differences with 5 digit numbers
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Mrs. Franks asked community members to donate school supplies to Harrison. They donated 33,942 pencils and 28,434 notebooks. About how many more pencils, to the nearest hundreds, were donated than notebooks? | There are about 5,500 more pencils than notebooks.
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| The Hershey’s Factory made 29,035 chocolate bars on Monday and 45,823 bars on Tuesday. To the nearest ten thousand, about how many chocolate bars did the factory make in all those two days? | The factory made about 80,000 chocolate bars in all.
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| Mr. Hale is trying to estimate how much black and green construction paper he has. He has 76,382 pieces of black paper and 91,824 pieces of green. To the nearest thousand, about how many more pieces of green does he have than black? | Mr. Hale has about 16,000 more pieces of green construction paper than black construction paper.
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| Janelle bought a dozen bags of beads. There are 62,353 red beads and 79,804 blue beads in the bag. To the nearest ten thousand, about how many beads are there in all? | There are about 140,000 beads in all.
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| Ms. Gilberts observes a field to determine how many tulips and daises there are. She counts 69,242 tulips and 55,853 daises. Determine about how many more tulips there are than daises, to the nearest thousand. | There are about 13,000 more tulips than daisies in the field.
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| Scientists tracked a humpback whale for The whale swam 54,398 miles the 1st year and 68,875 miles the next. About how many more miles, to the nearest thousand, did the whale swim the 2nd year than the 1st? | The humpback whale swam about 15,000 miles more in the second year.
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| Ms. Mary Mack is jumping on a trampoline. She jumped 13,292 inches on her first try. She then jumped 38,742 inches on her second try. About how many inches did she jump in all, to the nearest ten thousand? | Ms. Mary Mack jumped about 50,000 inches in all.
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| An architect designs a building that is 29,281 inches tall. The tallest building is 32,664 inches tall. About how much taller, to the nearest thousand, does the architect need his building to be so that it is as tall as the tallest building? | The architect's building needs to be 4,000 inches taller to be as tall as the other building.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
HarrTeacher
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