30:2=15 15+10=25 so it's 25
AnswerA different aproach would be to do the following:30 : 1/2 (a half) = 60 + 10 = 70.
Half of 30 is 15 so divide 30 by 15 and you get 2 + 10= 12!
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Half is the same thing as .5 so you divide 30 by .5 and you get 60 then you add 10 so it is 70. TADA!!!
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The answer is 70 (30 / 0.5 = 60, 60 + 10 = 70)
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b ./
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