This worksheet involves basic addition and subtraction using dinosaurs as visual aids. Let's solve each problem step by step:
Problem 1:
Image:
1 dinosaur + 3 dinosaurs = ?
- Count the number of dinosaurs on the left:
1
- Count the number of dinosaurs on the right:
3
- Add them together: \( 1 + 3 = 4 \)
Answer: 4
Problem 2:
Image:
3 dinosaurs + 2 dinosaurs = ?
- Count the number of dinosaurs on the left:
3
- Count the number of dinosaurs on the right:
2
- Add them together: \( 3 + 2 = 5 \)
Answer: 5
Problem 3:
Image:
3 dinosaurs - 1 dinosaur = ?
- Count the number of dinosaurs on the left:
3
- Count the number of dinosaurs on the right:
1
- Subtract them: \( 3 - 1 = 2 \)
Answer: 2
Problem 4:
Image:
2 dinosaurs - 1 dinosaur = ?
- Count the number of dinosaurs on the left:
2
- Count the number of dinosaurs on the right:
1
- Subtract them: \( 2 - 1 = 1 \)
Answer: 1
Final Answers:
1. \( 1 + 3 = \boxed{4} \)
2. \( 3 + 2 = \boxed{5} \)
3. \( 3 - 1 = \boxed{2} \)
4. \( 2 - 1 = \boxed{1} \)
Parent Tip: Review the logic above to help your child master the concept of 1st grade math worksheet addition and subtraction.
