Noah was doing some homework and answered the following questions: 2.7⋅-2.5=-6.75
-34⋅-57=-1528
5.5⋅-35=3.3
Do you agree with his answers? If you disagree, explain your reasoning.

Addition and subtraction of numbers has it's own technique

Noah is correct about the first question and wrong with the other two questions

So,

= - 6.75

correct

= -1528

Wrong

-34 × -57 = 1,938

wrong

5.5 × - 35 = - 192.5

Therefore, Noah is correct about the first question and wrong with the other two questions

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only the first one is correct.

There are 2 mistakes in the second one. The Multiplication is wrong and the sign is wrong. Negative × Negative =Positive

-34× -57 = 1938

The third is also incorrect. 5.5 × -35 = -192.5 not even close!

Step-by-step explanation: It is not easy to see the dots used to mean multiply. But that's what they do.

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