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18 May, 17:55

For homework, Brooke has 15 math problems, 5 social studies problems, and 9 science problems. Use mental math to determine how many problems she has for homework. Tell which property you used. Answer Property

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  1. 18 May, 21:31
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    29 homework problems

    Addition Property was used

    Step-by-step explanation:

    15+5=20+9=29

    Addition
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