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According to the order of operations, we solve the exercise from left to right since there is only multiplication in the exercise:
Solve the following exercise:
\( 12+3\cdot0= \)
The number 1 is called the multiplicative identity because it leaves any number unchanged when multiplied. Think of it as taking 1 group of 20, which is still just 20!
Yes! When you only have multiplication (or only division), always work from left to right. This is part of the order of operations rules.
You'd get , then - the same answer! Multiplication is commutative, but it's still best practice to work left to right.
Break it down: . Or think: 20 eights is twice as much as 10 eights (80), so 2 × 80 = 160.
These trap answers test common mistakes: 28 comes from adding (20+1+8), and 161 comes from calculating correctly but adding 1 at the end by accident.
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