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Answer Key
Grade 3 Math: Arithmetic Patterns
1.
a sequence that follows a rule
2.
how each next number is made
3.
add 2 / +2
4.
add 5 / +5
5.
add 3 / ×3 related
6.
20
7.
35
8.
0
9.
add 8 / +8
10.
55
11.
17, 14, 11
12.
change input by the rule to get output
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