4+4=20 , 5+5=30, 6+6=42, 7+7=56, 9+9=?
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4+4=20 --4*5=20
5+5=30-- 5*6=30
6+6=42-- 6*7=42
7+7=56 --7*8=56
8+8=72-- 8*9=72
then, 9+9=90 --9*10=90
hope i helped....pls mark it as brainliest answer..!!
5+5=30-- 5*6=30
6+6=42-- 6*7=42
7+7=56 --7*8=56
8+8=72-- 8*9=72
then, 9+9=90 --9*10=90
hope i helped....pls mark it as brainliest answer..!!
Answered by
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9+9= 90 may be this is the correct answer
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