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Adding to complete one hundred
Name:
Date:
Find the missing numbers:
1.
2.
3.
4.
56+ =100
5.
79+ =100
6.
7.
8.
9.
10.
11.
5+ =100
12.
17+ =100
13.
14.
15.
64+ =100
16.
17.
79+ =100
18.
13+ =100
Adding to Complete One Hundred Worksheet
This Grade 3 math worksheet helps students practice finding missing numbers that add up to 100. This essential skill reinforces number sense, mental math, and understanding of number relationships.
Key Learning Points:
- Understanding number pairs that make 100
- Practicing mental math strategies
- Developing number sense
- Building addition skills with larger numbers
The worksheet includes 18 problems where students need to find the missing number that adds up to 100. Problems are presented in both formats:
- Finding the first number: ___ + 85 = 100
- Finding the second number: 82 + ___ = 100
Regular practice with these problems helps students develop fluency with number combinations that make 100, an essential skill for mental math and more advanced mathematics.