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I need some simple equations that equal 12,20,21,31.
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Jan 10, 2015
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I need some simple equations that equal 12,20,21,31.
Mathematics
middle-school
Madmadi
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(3 • 2) • 2 = 12, (3 • 7) - 1 = 20, (3 • 2) + (3 • 5) = 21, (6 • 5) +1 = 31
Inshallah
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Jan 12, 2015
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2*(3+6)=12 (2*2)*5=20 (3*4)*7=21 1+(5*6)=31
Jenneh
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Jan 15, 2015
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