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This activity is about adding and subtracting positive and negative numbers.

 

Adding

 

181  + 431 =  594

-464 + 445  = -19

 

Remember that -464 + 445 is the same as 445 - 464

 

 

Subtracting

 

420 - 421 = -1

-160 - 160 = -320

 

Think of a number line if it helps.  When you subtract, you move to the left to make a number more negative.

10 questions