Because, if 6 + 6 = 12, then in 6 + 7, 7 can be splitted into 6 + 6 + 1, and so you find it easier...!!
4+X/X=X
4+X=X*X
when the answer fits the equation, the answer is correct
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Becuase 80 is the same as 8 but has an extra 0 at the end (which makes it 80) and same for 20 to 2. 8 + 2 = 10 (now add a zero at the end). The answer should be 100.
His mom paid 30 and he paid 10 I did 40÷4 the got 10 then times by how many 25% each had
