Let's solve each word problem step by step.
---
Problem 1:
David bought 3 presents for his children. The prices were $25, $22, and $18. How much did he pay in total?
#### Solution:
To find the total amount David paid, we need to add the prices of the three presents:
\[
25 + 22 + 18
\]
1. Add $25$ and $22$:
\[
25 + 22 = 47
\]
2. Add the result ($47$) to $18$:
\[
47 + 18 = 65
\]
So, the total amount David paid is:
\[
\boxed{65}
\]
---
Problem 2:
At the animal park, there were 14 dogs, 12 cats, and 15 birds. How many animals were there altogether?
#### Solution:
To find the total number of animals, we need to add the number of dogs, cats, and birds:
\[
14 + 12 + 15
\]
1. Add $14$ and $12$:
\[
14 + 12 = 26
\]
2. Add the result ($26$) to $15$:
\[
26 + 15 = 41
\]
So, the total number of animals is:
\[
\boxed{41}
\]
---
Problem 3:
Billy made 37 cookies over 2 days. He made 15 on Monday. How many did he make on Tuesday?
#### Solution:
To find out how many cookies Billy made on Tuesday, we subtract the number of cookies he made on Monday from the total number of cookies:
\[
37 - 15
\]
Perform the subtraction:
\[
37 - 15 = 22
\]
So, Billy made:
\[
\boxed{22}
\]
cookies on Tuesday.
---
Problem 4:
Mary read 50 pages of her book in 1 day. She read 21 pages in the morning. How many pages did she read in the afternoon?
#### Solution:
To find out how many pages Mary read in the afternoon, we subtract the number of pages she read in the morning from the total number of pages she read in a day:
\[
50 - 21
\]
Perform the subtraction:
\[
50 - 21 = 29
\]
So, Mary read:
\[
\boxed{29}
\]
pages in the afternoon.
---
Final Answers:
1. \(\boxed{65}\)
2. \(\boxed{41}\)
3. \(\boxed{22}\)
4. \(\boxed{29}\)
These are the solutions to the word problems. Each step was explained clearly to ensure understanding.
Parent Tip: Review the logic above to help your child master the concept of 2nd grade math problems solving worksheet.