Mr. Juan José observed 2,430 trees in a natural park. Some trees were cut down, and now there are 1,985 trees left. How many trees were cut down?
445 trees were cut down
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15
Miss Juanita measured 4,800 liters of water in the school tank. The school used 1,975 liters. How many liters of water are left?
2,825 liters of water were left
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15
Miss Juanita planted 1,780 flowers. After a few weeks, 945 flowers bloomed. How many flowers have not bloomed yet?
835 flowers have not bloomed yet
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15
Miss Juanita reported 5,240 downloads of the school’s environmental app. Later, 1,965 users deleted the app. How many users still have the app?
3,275 users still have the app
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15
Miss Juanita planted 2,750 seeds. Some seeds did not grow. Only 1,964 seeds grew into plants. How many seeds did not grow?
786 seeds did not grow
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15
Mr. Juan José installed 1,950 charging stations in different schools. Later, 2,175 more stations were added. How many charging stations are there in total?
4,125 charging stations in total
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15
Miss Juanita checked the technology room. There were 3,560 tablets. Some tablets were being repaired. Only 2,875 tablets were working. How many tablets were being repaired?
685 tablets were being repaired
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boom
Lose 50 points!
Oops!
rocket
Go to first place!
Okay!
fairy
Take points!
5
10
15
20
25
banana
Go to last place!
Oops!
15
Mr. Juan José counted 4,205 insects in the school garden. After the rain, there were 1,368 fewer insects. How many insects were there after the rain?
2,837 insects were there after the rain
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15
Miss Luisa counted 1,245 plants in the school garden. Miss Laura planted 378 more plants. How many plants are there in total now?
1,623 plants in total
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15
Miss Laura counted 3,480 birds during the first observation. During the second observation, there were 1,275 fewer birds. How many birds were seen during the second observation?
2,205 were seen during the second observation
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15
Miss Luisa recorded 2,845 trees in a protected forest. Later, 375 more trees were planted. How many trees are in the forest now?
3,220 trees are in the forest
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15
Miss Laura collected 1,890 plastic bottles. Miss Luisa collected 2,345 bottles. How many bottles did they collect in total?
4,235 bottles were collected in total.
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15
Miss Laura recorded 3,125 data points about temperature changes. She deleted 458 incorrect data points. How many correct data points are left?
