You have mentioned '7' three times in the question.
This is a tip-off that you could multiply 7 "times" 3 and get 21.
7 times 3
7*3= 21
No, it is not.
1 x 7 plus 2 x 7 is the same as 3 x 7
Order of operations: The final multiplication has priority - do it first, then add.You can simplify the problem. 11*7= 77.
Just do 7 x 3. Because it's 7 three times.
Multiplication and addition.
If you just switch the numbers around (in either multiplication or addition) it is the commutative property.
7x4=28
7×7× 7×7×7×7×7
The sum of 7 plus 7 is fourteen (14). This level of math is usually learned by elementary school students who memorize basic arithmetic such as addition and multiplication.
Following order of operations, multiplication happens first. Addition happens second. 7+6*42*2 =7+504 =511