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Math - Addition & Subtraction

Grade 1 Core · 1.OA.A.1, 1.OA.B.4 · Model basic operations with number sense and simple word problems.
Level 1
Practice SetsSet 1Set 2Set 3Set 4Set 5Set 6Set 7Set 8Set 9Set 10
* Learning Goal
Use fingers, pictures, or the number line if you need them. Show the operation that matches each problem.
1 Number Line Jumps
Start at the first number. Think about hopping right to add and left to subtract.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2 + 3 =
7 - 2 =
3 + 1 =
8 - 1 =
2 Choose the Operation
Read each story. Decide if you should add or subtract.

1. Mia has 4 shells. She finds 2 more. Number sentence:

2. There are 9 crayons. 3 are lost. Number sentence:

3. Jay reads 3 pages before dinner and 4 after dinner. Number sentence:

3 Missing Number
Think about the opposite operation to find the missing number.
+ 1 = 6
8 - = 4
3 + = 7
- 2 = 5