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According to the order of operations rules, since the exercise has only multiplication operations, we will solve the exercise from left to right.
We will solve the left exercise in the following way, by breaking down 102 into a smaller addition exercise:
Now we'll multiply 11 by each of the numbers in parentheses:
We'll solve each of the exercises in parentheses and get:
Now we'll get the exercise:
Since this is a multiplication exercise with a round number ending in 0, we can solve the exercise without calculation by adding a 0 to the number 1,122
It's important to place the comma in the appropriate place, and we'll get the number:
\( 94+12+6= \)
The order of operations says when you have only multiplication (or only addition), work left to right. This ensures everyone gets the same answer! You could multiply 11×10 first, but left-to-right is the standard rule.
Not always, but it makes the calculation much easier! Instead of doing 102×11 in your head, you can do and , then add them.
Multiplying by 10 is easy - just add one zero to the end of the number! So . Remember to keep commas in the right places for large numbers.
If you follow the order of operations correctly, you should always get the same answer! Try: . Double-check your arithmetic if you get something different.
Absolutely! You can break down any number into easier parts. For example: . This technique works great for mental math!
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