Weegy: You could check the answer to 27 ? 15 = 12 using addition by 12 + 15 = 27.
User: What's .25 as a fraction in simplest form?
Weegy: .25 as a fraction in simplest form is 1/4.
User: Solve the following problem: 28 – 18 – 10.
Weegy: 28 ? 18 ? 10
= 10 - 10
= 0
User: Select the proper placement for parentheses to speed up the addition for the expression 2 + 9 + 8 + 1
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