Here are the step-by-step solutions for each word problem:
1. Roses in the garden
*
Step 1: Find out how many roses are red and white combined.
$18 \text{ (red)} + 12 \text{ (white)} = 30$ roses.
*
Step 2: Subtract that number from the total number of roses to find the ones of other colors.
$50 \text{ (total)} - 30 \text{ (red and white)} = 20$.
2. Ella's markers
*
Step 1: Start with the total number of markers Ella bought.
Total = 30 markers.
*
Step 2: Subtract the number of markers she gave away.
$30 - 8 = 22$.
3. Books on the shelf
*
Step 1: Identify the total number of books and the number of fiction books.
Total = 36, Fiction = 24.
*
Step 2: Subtract the fiction books from the total to find the non-fiction books.
$36 - 24 = 12$.
4. Rob's toy money
*
Step 1: Identify the cost of the toy and how much money Rob already has.
Cost = $\$15$, Has = $\$8$.
*
Step 2: Subtract the money he has from the cost to see how much more is needed.
$15 - 8 = 7$.
Final Answer:
1. 20 roses
2. 22 markers
3. 12 books
4. $7
Parent Tip: Review the logic above to help your child master the concept of addition subtraction word problems worksheet 1st grade.
