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Prime Number Addition Problems

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Prime Number Addition Problems

Prime Number Addition Problems

Prime numbers and addition symbols

🔢 Part 1: Prime Number Recognition

Prime numbers are special numbers that can only be divided by 1 and themselves. Examples: 2, 3, 5, 7, 11, 13, 17, 19, 23...

1. Circle the prime numbers from this list:

2

4

5

6

7

9

11

12

➕ Part 2: Prime Number Addition Word Problems

2. Sarah has 3 stickers (3 is a prime number). Her friend gives her 5 more stickers (5 is also prime). How many stickers does Sarah have altogether?

Draw or use counters to show your work:

Write the number sentence: _____ + _____ = _____

3. Tom collected 7 shells at the beach (7 is prime). He found 11 more shells (11 is prime). What is the total number of shells Tom has?

Show your working:

Number sentence: _____ + _____ = _____

4. Emma has 2 books (2 is prime). She buys 13 more books (13 is prime). How many books does Emma have in total?

Draw your solution:

Answer: _____ books

🧮 Part 3: Solve These Prime Addition Problems

5. Calculate these prime number additions:

a) 3 + 7 = _____

b) 5 + 11 = _____

c) 2 + 17 = _____

d) 13 + 5 = _____

e) 7 + 23 = _____

6. Choose the correct answer for this word problem:

Jake has 5 marbles and finds 7 more. Both 5 and 7 are prime numbers. How many marbles does Jake have now?

10 marbles

12 marbles

13 marbles

15 marbles

🎯 Part 4: Create Your Own Prime Problems

7. Write your own word problem using two prime numbers that add up to less than 30:
8. What do you notice about prime numbers? Write one thing that makes them special:
9. Match each addition problem with its answer:
2 + 3
5 + 7
11 + 2
3 + 17
20
13
5
12

🌟 Part 5: Challenge Questions

10. Fill in the missing prime numbers:

_____ + 11 = 18

13 + _____ = 16

_____ + _____ = 10 (using two different prime numbers)

11. True or False? Tick the correct boxes:

All prime numbers are odd numbers

2 is the smallest prime number

Prime numbers can be added together

1 is a prime number

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