# Add Subtract to 20 Worksheet

Related Topics & Worksheets:
Math Worksheets
Multiplication Worksheets
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Free Online Worksheet to add and subtract within 20 using mental strategies.
This Sprint reviews adding and subtracting numbers within 20.

Objective:

• I can use mental strategies (e.g., count on, make a ten) to add and subtract numbers within 20 with ease.
• I can recall from memory all sums of two one-digit numbers.

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
8 + 3 =
3 + 8 =
11 - 8 =
11 - 8 =
7 + 4 =
4 + 7 =
11 - 4 =
11 - 7 =
9 + 3 =
3 + 9 =
12 - 3 =
12 - 9 =
8 + 5 =
5 + 8 =
13 - 5 =
13 - 8 =
7 + 5 =
5 + 7 =
12 - 5 =
12 - 7 =
9 + 6 =
6 + 9 =
15 - 6 =
15 - 9 =
8 + 7 =
7 + 8 =
15 - 7 =
15 - 8 =
9 + 4 =
4 + 9 =
13 - 4 =
13 - 9 =
8 + 6 =
6 + 8 =
14 - 6 =
14 - 8 =
7 + 6 =
6 + 7 =
13 - 6 =
13 - 7 =
9 + 7 =
7 + 9 =
16 - 7 =
16 - 9 =

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