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Answer:
1. B. 13
407+438= 845
845÷65= 13
2. C. 17
35+45+22=102
102÷6= 17
3. A. 50
66÷2= 33
33+17= 50
4. D. 8
40-8= 32
32÷4= 8
5. C. 125
1/3 of 150 is 50.
50+75= 125.
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