The document is a math challenge worksheet with 20 problems involving addition and subtraction. The problems include single-digit and double-digit numbers. The worksheet does not provide any context or explanation for the math problems.

1. Name: Date:
Math Challenge
Why did the police go to the baseball game? Somebody stole second base!
Complete the Activity.
1 2 3 4
2 10 11 7
+ 14 + 12 –5 –5
5 6 7 8
11 21 5 14
+1 –1 + 13 –4
9 10 11 12
11 19 25 6
–1 + 12 – 12 + 11
13 14 15 16
29 1 23 25
–3 +4 –3 – 19
17 18 19 20
13 20 1 12
–5 +1 + 13 +1
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