Island Hop Addition Worksheet
Island Hop Addition
Missing Addends
Find the unknown number to solve each tropical equation!
Name:
Date:
Island Hop Number Line (0 – 20)
🌴 Tip: Start at the known number, then hop to the total!
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Instructions: Count how many hops connect the addend and the total. Write the missing number in the blank box!
Example: 3 + 7 = 10
1
4 +
= 10
🌺
Space to solve (hops, counters, or work):
2
🍍
Space to solve (hops, counters, or work):
3
7 +
= 15
🥥
Space to solve (hops, counters, or work):
4
🌸
Space to solve (hops, counters, or work):
5
6 +
= 13
🌴
Space to solve (hops, counters, or work):
6
☀️
Space to solve (hops, counters, or work):
7
9 +
= 18
🌊
Space to solve (hops, counters, or work):
8
🐚
Space to solve (hops, counters, or work):
Tropical Challenge: Can you check your hops backward using subtraction? (e.g., 10 − 4 = 6)
🌴 Great Job Explorer!