Let's solve each problem step by step:
---
Problem 1:
There were 8790 people at a carnival. 2390 of them are adults. How many children were at the carnival?
-
Operation: Subtract (since we need to find the number of children by removing the number of adults from the total number of people).
-
Calculation:
\[
8790 - 2390 = 6400
\]
-
Answer: 6400 children
---
Problem 2:
An ant hill has 7878 ants. Another ant hill has 2314 ants. How many ants are there in the two ant hills altogether?
-
Operation: Add (since we need to find the total number of ants by combining the ants from both hills).
-
Calculation:
\[
7878 + 2314 = 10192
\]
-
Answer: 10192 ants
---
Problem 3:
Zaitul's father spent $4500 on a golf set and a bicycle. He spent $567 on the bicycle. How much did he spend on the golf set?
-
Operation: Subtract (since we need to find the cost of the golf set by removing the cost of the bicycle from the total amount spent).
-
Calculation:
\[
4500 - 567 = 3933
\]
-
Answer: $3933
---
Problem 4:
5763 bottles of water were sold at a race on Saturday. 2432 more bottles of water were sold on Sunday. How many bottles of water were sold on Sunday?
-
Operation: Add (since we need to find the total number of bottles sold on Sunday by adding the additional bottles to the number sold on Saturday).
-
Calculation:
\[
5763 + 2432 = 8195
\]
-
Answer: 8195 bottles
---
Problem 5:
Maria had 4888 beads. Her mother gave her 3231 beads. How many beads did Maria have altogether?
-
Operation: Add (since we need to find the total number of beads by combining the beads Maria already had with the beads her mother gave her).
-
Calculation:
\[
4888 + 3231 = 8119
\]
-
Answer: 8119 beads
---
Final Answers:
1.
6400 children
2.
10192 ants
3.
$3933
4.
8195 bottles
5.
8119 beads
Boxed Final Answer:
\[
\boxed{6400, 10192, 3933, 8195, 8119}
\]
Parent Tip: Review the logic above to help your child master the concept of problem solving involving addition and subtraction worksheet for grade 2.
