11+1
Exactly as in the question: 7+5 = 12
20
The statement "5 + 7 equals 12" is incorrect; the correct sum of 5 and 7 is 12. This can be verified by adding the two numbers together: 5 + 7 = 12. Therefore, the statement is accurate.
Commutativity of addition or the fact that addition is Abelian.
To find 54 more than the sum of 12 and 33, first calculate the sum of 12 and 33, which is 45. Then, add 54 to this sum: 45 + 54 equals 99. Therefore, 54 more than the sum of 12 and 33 is 99.
Exactly as in the question: 7+5 = 12
19 plus 12 equals 31. This is because addition is a mathematical operation that combines two numbers to find their total sum. In this case, adding 19 and 12 together results in a sum of 31.
20
12.
9
The statement "5 + 7 equals 12" is incorrect; the correct sum of 5 and 7 is 12. This can be verified by adding the two numbers together: 5 + 7 = 12. Therefore, the statement is accurate.
Commutativity of addition or the fact that addition is Abelian.
57
12
the number is 11
The sum of 4 and 8 means: 4 + 8 = 12 so the answer is 12.
5 x 7 and 6 x 7