Let's solve each problem step by step:
---
Problem 1:
There are 675 ants in a colony. 248 ants leave. How many ants are there now?
#### Solution:
We need to subtract the number of ants that leave from the total number of ants initially present.
\[
675 - 248 = 427
\]
So, the number of ants remaining is:
\[
\boxed{427}
\]
---
Problem 2:
A farmer plants 429 trees in a plantation. He cuts down 375 of the trees. How many trees are left?
#### Solution:
We need to subtract the number of trees cut down from the total number of trees planted.
\[
429 - 375 = 54
\]
So, the number of trees left is:
\[
\boxed{54}
\]
---
Problem 3:
Frazer has 406 marbles. Sally has 273 marbles. How many more marbles does Frazer have than Sally?
#### Solution:
We need to find the difference between the number of marbles Frazer has and the number of marbles Sally has.
\[
406 - 273 = 133
\]
So, Frazer has:
\[
\boxed{133}
\] more marbles than Sally.
---
Problem 4:
There are 527 cars in a parking lot. 153 cars drive away. How many cars are there now?
#### Solution:
We need to subtract the number of cars that drive away from the total number of cars initially in the parking lot.
\[
527 - 153 = 374
\]
So, the number of cars remaining is:
\[
\boxed{374}
\]
---
Problem 5:
Captain’s electric car can travel 414 miles on a single charge. Tyger’s car can travel 287 miles. What is the difference?
#### Solution:
We need to find the difference in the distances that Captain’s car and Tyger’s car can travel.
\[
414 - 287 = 127
\]
So, the difference is:
\[
\boxed{127}
\] miles.
---
Problem 6:
In a zoo, there are 343 reptiles and 567 amphibians. How many more amphibians than reptiles are there?
#### Solution:
We need to find the difference between the number of amphibians and the number of reptiles.
\[
567 - 343 = 224
\]
So, there are:
\[
\boxed{224}
\] more amphibians than reptiles.
---
Final Answers:
1. \(\boxed{427}\)
2. \(\boxed{54}\)
3. \(\boxed{133}\)
4. \(\boxed{374}\)
5. \(\boxed{127}\)
6. \(\boxed{224}\)
Parent Tip: Review the logic above to help your child master the concept of subtraction word problems worksheet 3rd grade.